I've added another wiki page covering Sequel filters:

  http://code.google.com/p/ruby-sequel/wiki/FilteringRecords

Block filters are so flexible it's mind boggling. Let me know if
there's anything missing or unclear.

I'd also like to call out for help on documentation and evangelizing.
I'm getting the impression that not enough people know about Sequel
and its capabilities. So, if anyone can spare the time to write a blog
post, create a screencast or some slides, that would be super cool!

I'm also adopting a new policy regarding commit rights, following the
example of the Rubinius project: anyone who submits a patch that gets
accepted will be given commit rights. If you don't feel experienced
enough writing code, you can try and improve the documentation
instead, or even write more specs.