You should make a new social site (digg,reddit). And then of course send it to me. Nah jokes aside that would really work. If you could build a bot in a social link sharing site it would probably take 2k for ground work and you can use the rest of the money to maintain and update it. You would left with a lot more than 2k after the first runs. You could probably make 10k on the first day of using the software yourself. Or if you wanna make 100k the first day you can go ahead and sell it but that wouldn't be a long term solution.