Jim Thomps>Why are you posting from GoogleGroups ?:-)
The read-from-anywhere aspect and the gets-around-blocking thing make it convenient for me. I do a lot of searches, so I'm already there for that. I also find bookmarking Google Group items (with keywords highlighted) convenient to use to metaphorically "jot down" things.
Mark's choice of software (and others with similar capabilities) are something I want to add to my Bookmarks for reference.
In the past, I never filtered mechanically
--even when I was using a real newsreader (and didn't with Outbreaks in Excess before that either).
These days I'm thinking seriously about one of the browser filters to use with Google's email@example.com