Reading through some of these, it raises a point of, what do you include in a bio?
Thing is, the important thing to realize is that the reader doesn't really care what is important to YOU. Instead, you need to give details that are interesting to THEM.
Examples of things that authors frequently include, but aren't really interesting to most readers (at least, IMO) include information about your children (beyond that you have some), or your pets (unless your story revolves around animals).
I remember reading a blog by an agent that dealt with this topic. The idea is to make your life sound interesting (without lying!), and not resorting to "facts".
I'm not sure my bio (posted earlier) necessarily fits the bill, but I left the bit about being a husband, father, and software engineer for the end on purpose, and focused instead on what I thought a kid might relate to: that being, my childhood involved living in my imagination. (By all means, though...let me know if any part of my bio isn't interesting. I have no issue changing it.)
In other words, your bio needs to fit your target audience JUST as much as your query needs to fit the agents you're querying, and your novel must fit the readers of that genre/age group.
I won't say which ones are like this, but several posted here, frankly, bored me to tears. Others are very intriguing. (Okay...how's that for making everyone self-conscience?)
Think about what you like reading about in other bios about people, then do the same with your own.
Just don't tell me about your pets. (Uh...no offense to those who just did up above...I'm not targeting any of you with that comment...just passing on wisdom I've learned from others on the subject.)