The schema.org official blog has announced support for enumerated lists. Adding this support allows developers using schema.org to use selected externally maintained vocabularies in their schema.org markup. According to the W3C-hosted schema.org WebSchemas wiki, “This is in addition to the existing extension mechanisms we support, and the general ability to include whatever markup you like in your pages. The focus here is on external vocabularies which can be thought of as ‘supported’ (or anticipated) in some sense by schema.org.”

In other words, “Schema.org markup uses links into well-known authority lists to clarify which particular instance of a schema.org type (eg. Country) is being mentioned.”

For example, consider a list of countries of the world. A developer could use this URI from Wikipedia to reference the USA or this one from the UN FAO, or this one from GeoNames.

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For Web Developers who have been looking for resources devoted to adding Linked Data to HTML, there’s a new site available today: RDFa.info. Visitors are greeted with the following headline, “RDFa is an extension to HTML5 that helps you markup things like People, Places, Events, Recipes and Reviews. Search Engines and Web Services use this markup to generate better search listings and give you better visibility on the Web, so that people can find your website more easily.” SemanticWeb.com has covered RDFa’s development and use in the past and we’ve often heard from developers that they were looking for such a starting place.

Manu Sporny

Led by members of the RDFa Community, RDFa.info provides information and resources aimed at dispelling the myth that RDFa is difficult to implement. SemanticWeb.com caught up with Manu Sporny, one of the creators of the site, to learn more about its goals and resources: “One of the misconceptions that RDFa has, is being seen as a very programmer-centric extension to HTML. This misconception is unfortunate because it was built for Web developers, and with the right introduction to it, anyone can author RDFa.”

He continued, “We wanted a site that captured and taught the essence of RDFa to Web Developers. We wanted the site to gather a set of documentation and tools that would help web developers not only learn about authoring RDFa, but help them write markup, show them the result of their markup, and point out any issues with their RDFa-enabled web pages.”

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Update: Yandex today (April 26th) reported that net income in the first three months of 2012 rose 53 percent from the same period last year to 1.26 billion rubles ($43 million) as text-based advertising revenue rose, according to Bloomberg. Sales gained 51 percent to 5.9 billion rubles.

In November Russian search engine Yandex joined Google, Microsoft Bing, and Yahoo! to collaborate on schema.org. The Semantic Web Blog recently caught up by email with Alexander Shubin, Yandex product manager and head of strategic direction, to discuss this and other developments.

The Semantic Web Blog: Can you update us about how Yandex is doing? We know it’s still leading search traffic in Russia, but do you see more competition there, and how have international expansion plans been proceeding?

Shubin: Yandex is the leader in Russia with 59 to 60 percent market share. Russia is one of the few countries where a local search engine keeps a leading position, in spite of international players’ expansion.

Last year Yandex was launched in Turkey, where we suggest 12 services (including web search) so far. According to our statistics, yandex.com.tr processes more than 1 million queries daily. Turkey is the first non-Russian speaking market for us and we have done a lot of work to deliver services that would be interesting for the local community.  The main target for Yandex in Turkey, where one search engine still keeps 90 percent of search market, is to become the Number 2 player and to deliver more local search results and services than our competitor does.

Turkey is more or less an experiment for us: If we meet our target there, we can potentially do the same on any other non-Russian speaking market. But it is too early to make any conclusions or announcements so far as we have worked in Turkey only half of year. Stay tuned!

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Google has announced two updates to rich snippets, the enhanced format that they announced in 2009 for displaying content in search results that use semantic markup.

The first update addresses an issue raised on answers.semanticweb.com in July of 2011. Prior to this update, only some places in the world saw rich snippets in their local results. Now product rich snippets is getting global support, meaning that users worldwide will be able to preview product information in the rich snippet. Here is an example from www.google.fr:

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Ryan DeShazer of Search Insider recently shared his insights on how SEO needs to adapt or in order to stay current with Google’s planned semantic search updates. DeShazer lists three pieces of advice. The first is, “Become a content strategist – technical on- and off-page factors will continue to see a decline in importance. The most compelling and desirable content will win. I can’t help but think how this new thinking gels perfectly with the concept of storytelling and content curation through social media channels. This construct would be the ideal ying-yang relationship to content marketing across search and social channels.” Read more

What’s on the markup menu for the restaurant industry?

Among the schema.org tags for marking up web pages is one for restaurants, which includes item properties for priceRange, servesCuisine, place, and menu, among others. Restaurants that use the markup language to structure their data are promised search engine optimization (SEO) benefits when hungry consumers want to see what’s on the menu at moderately-priced nearby Italian eateries, for example. They might also or alternately use the GoodRelations ontology for e-commerce to better accommodate search engines, as well as mobile and desktop apps, with service details of hours, payment options, and daily menus that are accessible in up to 50 languages.

OpenMenu has a value proposition around structured data for restaurant owners, too: Providing increased exposure to Internet, mobile and web apps, via what it aims to be a global and open standard for storing, sharing and using their menus over the Internet. The technical details are described at its OpenMenu.org site. Initially launched in 2010, it recently updated the format to Version 1.6 and currently counts about 75,000 menus as part of its landscape – 5,000 of them actively maintained and growing at a couple of thousand a week, according to CEO and founder Chris Hanscom.

Third-party developers can harness the data too, to build applications that interact with menus, like OpenMenu Search, a way for a search engine to drill down through a restaurant’s information to the menu and menu items.

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Need another reason for bringing semantic smarts to your web site? Maybe you can find it in a post at Search Engine Land, which includes a piece of a podcast from an SXSW session, and a transcription of it, featuring Google’s head of webspam team Matt Cutts (over this way).

At the session, Cutts noted that Google has been working in the last few months to level the playing field so the advantage doesn’t go to those more focused on overusing search engine optimization vs. producing great content and sites. Over the next months or few weeks it plans to announce something about this, that will involve what it’s been doing to “make GoogleBot smarter, make our relevance better, and we are also looking for those who abuse it, like too many keywords on a page, or exchange way too many links or go well beyond what you normally expect. We have several engineers on my team working on this right now.”

Take that plus the past year’s developments around the schema.org Google-Microsoft-Yahoo-Yandex collaboration (see stories like these here and here and here), and the latest playing up by Google of its continuing semantic search technology efforts (see here), and it seems there’s more and more reason more closely on semantic markup as part of a solid and truly helpful SEO strategy.

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Jon Mitchell recently looked into the implications of Google’s decision to start incorporating semantic search into its keyword search system. He writes, “This is bound to shake up the way today’s keyword-driven search engine optimization works. The essence of the SEO game is tailoring page titles, URLs, topic tags and body text to the words and phrases people use to search the Web. Google only has to match the keywords in the query to the keywords on the Web using a lexical database. That’s relatively easy, and it allows humans to game the system.” Read more

Online publishers and other content providers have a new analytics tool to help them understand what their readers care about and use that information to better connect them to their sites’ relevant and compelling content. Launching today is Dash, based on the predictive content analytics platform Parse.ly. The technology crawls every article page for Parse.ly’s publisher-partners, and analyzes, in real time and at scale, the text to identify relevant topics to group related content together. Behind this lies natural language processing technology, which uses language queues hidden inside the text to determine its affiliated topics. To date Dash has extracted over 350,000 unique topics through all the URLs is has crawled during private beta for a healthy taxonomy of topics across the web being consumed by users.

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To accompany our recent podcast looking back on 2011, we’ve accumulated some additional perspectives from thought leaders in the next-wave Web space on the year that’s quickly passing us by.

Some highlights follow. You’ll see respondents hit on some common themes throughout, such as Big Data, sentiment analytics, specific vertical industry adoption, and the standards space:

• SKOS has become an increasingly popular entry point for organizations that want to use semantic technology in practical applications without worrying about the more complicated aspects of semantic web technology. – Bob  DuCharme, solutions architect, TopQuadrant

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