I'm sure you've read these before, but Paul Graham has a lot to say about this:<p><a href="http://www.paulgraham.com/maybe.html" rel="nofollow">http://www.paulgraham.com/maybe.html</a>
<a href="http://www.paulgraham.com/siliconvalley.html" rel="nofollow">http://www.paulgraham.com/siliconvalley.html</a>
<a href="http://www.paulgraham.com/kate.html" rel="nofollow">http://www.paulgraham.com/kate.html</a>