I recently started using StumbleUpon (here’s my profile) in my Firefox browser to discover new sites, and I feel stupid for not trying it before now. Poking around the Internet for the last week or so, I have “stumbled” upon some good sites (and found some on my own):

• Read Print has online books. I like the Shakespeare section. I did notice a few typos on the site (Hamnet Shakespeare died in 1596, not 1896), but the articles were interesting.
• I’ve probably mentioned DailyLit before, but it merits mention alongside Read Print. I don’t think I could have finished Moby Dick if not for DailyLit. I am currently reading Emma. All of us have five minutes for a book each day.
• Guide to Grammar and Writing has some interesting grammar activities; I found it via SMART’s English/Language Arts Resources.
• NCTE Inbox is now a blog! I missed the inception when I let my NCTE membership lapse.
• What Should I Read Next? looks like a great tool for teachers to recommend to students who are looking for books similar to ones they already like.
• BookMooch enables users to swap books.  It’s free (except for postage).
• Here’s a huge collection of writing resources.