If I ever come across something I think is interesting, but isn't necessarily informative, it goes into a separate folder. Well, for the next week or so, I'm opening that folder and sharing the wealth.
Do you like books? How about free books? Sure, they're a little older, but the Gutenburg Project has made it their mission to gather all books under public domain and put them in once place. You can get all the classics here. This site is utterly amazing. You can download over 30,000 free ebooks to read on your PC, iPhone, Kindle, Sony Reader or other portable device.
If you have too many books to keep track of, try Library Thing. It'll help you catalog everything. If you're like me and you have more trouble keeping track of your to-read list (or you want to find books to add to your to-read list), then Goodreads is the place to go. Another great place to build your list is Flashlight Worthy. It'll help you find books similar to those you already love.
It can be hard to find a good fantasy or sci-fi series (depending on your taste). The Suvudu Free Book Library gathers the first in a series and will let you read it for free to see if you like it.
Do you like oxymorons? Here's an Oxymoron Generator from WritingFix.
Ever wonder where a word or phrase came from? Here's the Online Etymology Dictionary. Etymologies are not definitions; they're explanations of what our words meant and how they sounded 600 or 2,000 years ago.
And the last link for today is Wordle. You can paste a document and it'll create a word cloud for you.