The Importance of Follow-up

Reminds me of the article from earlier this week "Hacking the system: How to land meetings with anyone you want". [1]

Similar idea but much more polite by not outright saying "I'm going to keep emailing you until you tell me to stop." Keeping a spreadsheet with follow-up dates and number of attempts is a great idea, I'm going to start doing that.

[1] http://venturebeat.com/2011/06/16/hacking-the-system-how-to-...

I have found this to be very true. For one venture, I have a wiki (not unlike your spreadsheet) with everyone I've emailed and plan to email, with their data, position, when to email/call them next, their status, etc.