I still welcome (and need) emails from startups -- I just want everyone to understand that if I don't get around to them, this is why. As for persistence, it c

I still welcome (and need) emails from startups -- I just want everyone to understand that if I don't get around to them, this is why. As for persistence, it can work for you and against you. Knowing when it's a good tactic and when to back off... that's a fine line. =)