The W3C‘s ESW wiki has just consolidated a listing of RDF and OWL tools. This SemanticWeb Tools listing contains references to about 70 distinct tools, some open source and some proprietary, in areas such as:
The best thing about this listing is that it is available in wiki format and therefore is updated frequently by practitioners in the field. My only complaint is that the listing does not include information extractors (IE) or metadata generators. At any rate, I highly recommend bookmarking this site and re-visiting it frequently.
[...] The W3C’s ESW semantic Web wiki, which I recently featured for its listing of 70 semantic Web tools, has now added a compilation of semantic Web books and conference proceedings, strictly defined. The listing presently contains about 20 books, mostly from the last two years, and a similar number of book-length conference proceedings. Though the predominance of listings is for English, books are also listed in French, German and Hungarian. [...]
[...] I have been assembling for some time a listing of semantic Web-related software applications and tools. My first partial listing had about 50 sources. I recently noted the W3C’s semantic Web wiki listing of about 70 sources. I then came across the EU’s AKT (Advanced Knowledge Technologies) project, which also has about 75 tools compiled. Protà ©gà © also has a fairly long list of plugins, but not unfortunately well organized. Complicating matters still was the listing of natural language processing tools listed at the Natural Language Software Registy, another fantastic resource particularly in the annotation and information extraction arena. [...]