Hmmm. I finally managed to mess up my weblog temporarily. I posted a link with a missing closing quote and this caused the edit page to not display so I couldn't fix it. This was also the time when I found that the backup system wasn't working. So I had to edit the files manually. All on the 200th entry.
Anyway, congratulations to me for managing to fit 200 posts into one year. That's just over one every two days.
OK. Since you asked, I created a more detailed guide to RDF. It has two parts. The first page describes the model including triples, types and so on, in enough detail to understand RDF, without barely a mention of syntax. The second page describes the RDF-XML syntax, using examples and terms from the previous section.
The goal is so that people can understand the purpose of RDF without getting distracted with XML syntax. So, if you are reading it, make sure to read the first page first, or you'll be confused.
I include it as part of the Mozilla SDK Guide, although it isn't particularly specific to Mozilla.