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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SemTechBiz is Less Than 3 Weeks Away

The Semantic Tech & Business Conference (SemTechBiz) is coming to San Francisco on June 3-7! Join us for case studies, innovative panels, tutorials, and keynotes that will provide you with practical advice, hands-on guidance, and breakthrough approaches to solving business problems with semantic technology. Passes go up $200 at the door. Sign up now and save !

Yesterday, we announced RDFa.info, a new site devoted to helping developers add RDFa (Resource Description Framework-in-attributes) to HTML.

Building on that work, the team behind RDFa.info is announcing today the release of “PLAY,” a live RDFa editor and visualization tool. This release marks a significant step in providing tools for web developers that are easy to use, even for those unaccustomed to working with RDFa.

“Play” is an effort that serves several purposes. It is an authoring environment and markup debugger for RDFa that also serves as a teaching and education tool for Web Developers. As Alex Milowski, one of the core RDFa.info team, said, “It can be used for purposes of experimentation, documentation (e.g. crafting an example that produces certain triples), and testing. If you want to know what markup will produce what kind of properties (triples), this tool is going to be great for understanding how you should be structuring your own data.”

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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.

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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Are you wondering why your product pages don’t stand out in search results like those from Amazon (shown below) or other competing e-commerce websites? These expanded results are commonly known as Rich Snippets (as named by Google) and are the result of having your HTML structured correctly with semantic markup. Whether you’re savvy to HTML5 and the latest design trends, or you haven’t updated your website code in years, this is article will explain why it’s important you structure your data properly utilizing semantic standards.

There are a number of ways to structure your data to make it more relevant to search engines, as well as social media sites. As an e-commerce retailer it is important to understand which of these standards you should consider including in your website. You should take some time to ensure you are implementing semantic markup, and doing it correctly. It has the power to better inform potential customers with upfront knowledge prior to landing on your site. Customers can see product reviews, pricing and stock information, and even images before clicking through to your website. This can lead to increased click-through rates, improve conversions, and generally enhance your SEO objectives.

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This year was the 21st World Wide Web Conference located in Lyon, France. This conference is a unique forum for discussion about how the Web is evolving. There were hundreds of talks over 3 days. Let me summarize some Semantic Web presentations I was able to attend.

NautiLOD

Programmers daily use the wget tool to specify and retrieve data on the Web. However, wget is limited since it cannot dig into the semantics of Web data to do the job. What if you were to add semantics to wget? This is the question that Valeria Fionda, Claudio Gutierrez and Giuseppe Pirró asked themselves. They took that question to the next level: imagine a semantic wget on top of Linked Data. They wanted to create a language to declaratively specify portions of the Web of Data, define routes and instruct agents that can do things for you on the Web. All this by exploiting the semantics of information (RDF data) found in online data sources. For example, find all the Wikipedia pages of directors that have been influenced by Stanley Kubrick and send them to my email; retrieving information about David Lynch from different information providers only gives a hint of what can be done. The researchers developed a simple, generic declarative language, NautiLOD and implemented it in swget (semantic wget). swget comes in two flavors: a simple command line tool (to give the Web back to users) and a GUI. This is not a fantasy anymore. Check it our for yourself (http://swget.wordpress.com).

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SemanticWeb.com and parent company WebMediaBrands recently announced a contest to earn the title of  “Top Semantic Technology Start-Up.” Today, we have two exciting announcements to make about the contest.

Deadline Extension

We have had several requests to extend the deadline, and are announcing today that we will now accept applications for the contest until April 30, 2012. We also learned of some applicants who encountered technical problems when trying to submit in the early days of the contest. We have fixed the code that caused these problems, and encourage all who experienced difficulties to try again.

Judges

We are also pleased to announce the panel of judges that will be at SemTechBiz evaluating the companies. It’s a great group, and we’re looking forward to a lively afternoon!

Left to Right, they are: Read more

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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On Wednesday, February 28, 2012, enterprise search company, SalsaDev, and CMS platform Magnolia-CMS will broadcast a live Webinar (Registration required) discussing how SalsaDev adds semantic capability to the Magnolia CMS. According to the organizers, “Software that understands content makes a CMS significantly more valuable. Due to automated reasoning, no more manual work will be needed, for example by content authors to display related content. Website visitors will benefit from context-aware search that yields the best results from vast amounts of content. By combining Magnolia CMS with salsaDev’s technology, users save time and maximize the value of content.”

Participants will learn:

• How to quickly install and configure the searchBox solution for Magnolia CMS
• How to customize the searchBox integration and ensure high performance
• Typical scenarios and the business benefits of semantic search technology

The hosts continue, “This Webinar is extremely useful for CMS developers of all levels, as well as decision makers interested in deploying a semantic CMS.”

Details

Wednesday, February 29, 2012
4:00 PM – 5.00 PM Central European Time (CET)
10:00 AM – 11:00 AM Eastern Standard Time (EST)

Read more and register for the live webcast.

NOTE: Eric Franzon will participate in a Q&A panel following the demo.

Users of Prestashop, the popular open source e-commerce package that powers over 100,ooo shops, now have easy access to semantic markup through the release of a free extension module from Makolab S.A. The extension adds markup from the GoodRelations vocabulary using RDFa syntax to the product item page templates. Read more

We sat down with Mike Tung, CEO of Diffbot to learn more about this innovative technology that takes a different approach to deriving meaning from web pages.

SemanticWeb.com: What is Diffbot?
Mike Tung: Diffbot is a technology that allows software applications to interpret web pages the way human beings do–visually.  We offer an API to developers that lets them visually extract semantic information from web pages depending on the page type.  We’ve observed that the entire web can be classified into roughly 30 structural page types and have trained our visual extraction algorithm on two of those page types so far–frontpage and article pages.

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