The number of posts I've been rejecting lately has been depressing even me, hard-hearted mod that I am, and so it may be time for a rule reminder.
Your posts are required to contain information on how you attempted to research your question, and "I googled" or "I checked Wikipedia" doesn't count. You need to include at least some of the keywords you tried or some of the articles you read.
So far I've tried to be lenient and approve posts unless I could think of an obvious search term to try, but this type of enforcement is subjective and I'm sure that some of you feel like your posts were no more rule-breaking than one I let through. But if you follow the rules you should have no problems!
We now return to your regularly scheduled community.