Mentioned earlier, the GreaseMonkey script which pushes starred items from Google Reader into Delicious.
Google Reader is the primary tool I use to read blogs. Here is how I use tags to organize the feeds I’m following.
MailBucket: a wonderfully simple and free means to burn email to RSS. Kudos to Tom Dyson for providing this excellent resource.
Online retailers not yet using RSS for marketing purposes should consider testing doing so. Use a validator regularly to ensure your feeds are well-formed.