Yahoo today gave a sneak peek of a new research-focused service aimed at making life easier for teachers, Yahoo Teachers. The new service, highlighted at the TechCrunch40 conference, is part online clipping service, part lesson planner, and part collaboration tool. Yahoo Teachers is currently in closed beta.
Also from TechCrunch come rumors that Yahoo will acquire Zimbra, an online/offline office suite. If that's true, it wouldn't be much of a surprise, given the moves Google and Microsoft have been making in that area.