After the UK Government publication The London Gazette (published since 1665), which we have already reported on, the next UK Government site reported to use RDFa is the UK National Archive.
Another UK Government site is also soon to follow. Watch this space!
A nice outline of metadata in HTML including SHOE, microformats, eRDF, and RDFa in the context of searching based on annotated Web content is available at ReadWriteWeb: Making the Web Searchable: The Story of SearchMonkey by Alex Iskold.
The London Gazette is the UK Government’s Official Journal and Newspaper of Record, published since 1665. A new issue is published every working day with 300-500 official notices.
At her talk SemWebbing the London Gazette at the forthcoming XTech conference, Jeni Tennison will explain how the London Gazette is adopting RDFa to semantically mark up their pages.
Bryan Lawrence had some thoughts on authoring RDFa in a Wiki. I’m quite excited to see this kind of development and looking forward seeing results in form of plug-ins, extensions, etc. - anyone else out there who has a concrete implementation available?
Correspondents have pointed out that Digg has started using RDFa. Going to look I see such things as:
<h3><a href="http://www..." rel="dc:source" property="dc:title">
Headline
</a></h3>
Great stuff!
I got 71 triples from their home page when I tried.
David Peterson gives a good analysis of what Yahoo’s announcement means for sites wanting to get semantic information into search results.
TopBraid Composer is a modeling environment for developing Semantic Web ontologies and building semantic applications, built as a plug-in for Eclipse. In part of the description for the product, it says:
“RDFa and GRDDL are evolving W3C standards to embed semantic markup in XHTML pages. Composer can parse such documents to extract RDFa metadata from HTML pages. The metadata can then be treated like any other RDF source, and users can perform DL reasoning or SPARQL queries on it. Together with the other data integration capabilities and visualization tools Composer can be used to develop mash-up applications. TopBraid is also a comprehensive RDFa Editor.”
In the OpenOffice.org blog GullFOSS, this week’s Development at a Glance mentions that they have started work on support for RDFa and RDF XML metadata in ODF 1.2 documents. ODF, or the Open Document Format, is the document format for electronic office documents produced by the suite of programs that make up Open Office.
The new experimental Yahoo Microsearch supports RDFa marked-up pages. For instance, searching for Ivan Herman shows his location on a map, and several predicates he uses on his home page. such as ‘formatted name’ and ‘holds account’, appear in the search results.
Dan Brickley has recently asked how RDFa could be used to annotate HTML imagemaps. Dan wants to express for example:
this area of the image depicts the person who is the primaryTopic of http://danbri.org/
Please share your ideas with us!