MIT Press : this was real similar to the last book i read about the semantic web. it quickly covers XML, RDF/RDFS, OWL, and Rules. its a quick read and helped me get further along with understanding both OWL and the Rules syntax. it mentions, but doesnt have any content about Trust, the layer above Rules.
so now the question is ... how come i very rarely hear anything about the semantic web from the .NET community? or maybe i am, and just dont realize it. MS is starting to push DSL (domain specific languages) ... i'm assuming that could be related to ontologies? dont know, because i havent looked at DSLs yet.