Readability & TBuzz
Readability, from Arc90, removes the clutter from busy Web pages, making them much easier to read. On the Readability website, set your preferences for how you’d like to view web pages – font size, margin and page style. Then add the customized bookmarklet to your browser’s toolbar. When you come upon a cluttered page, click the bookmarklet and get a nicely cleaned up page, ready to read or print. (via Tech Chicks Tips)
TBuzz, also from Arc90, helps you quickly post a note about a web page to Twitter, while showing other Twitter comments about that page.
I’m curious to check out their other projects on their labs page.