Beta Testers: What is the best way to find good beta testers?
I'm designing and developing a little project overview application. I'd like some people to test it, but so far I only have a few. I'm tweeting about it, posting it on facebook, but my friends don't seem to be too interested.
I've considered putting announcements on productivity forums, but I feel it will be confused with spamming.
How do you gather beta testers?