Newsgator continues to remain the most popular RSS reader that my feed subscribers use. And although Google is certainly coming on strong, Newsgator Online is getting ready to plow ahead with its next rev. You need to be a registered user to try it out, but it's free to sign up. (Newsgator is an Edelman partner.)
The new Newsgator Online beta looks a lot like the prior version, but it's quicker thanks to Ajaxy goodness. In addition, there are some keyboard shortcuts similar to what Google offers (e.g. hit "f" for the full post, "n" for the next page, etc.) It's largely an evolutionary upgrade, but it impacts lots of RSS fans given its installed base.
