The Zcash Open Source Miner Challenge
zcashminers.org
zcashminers.org
Zcash discussion forum: https://forum.z.cash/
Zcash Slack online chat: https://zcashcommunity.slack.com/
The deadline is a little short at this point, but if you're decent at GPU programming it is achievable. Most of the other contestants are on the Zcash Slack.
http://toom.im/ has the fastest known GPU miner, while
https://cloud.zeropond.com/ was the first to offer cloud hashing (unavailable to US customers).
The release of a good public GPU miner is one of the contest goals. Another is to close the huge gap between the reference CPU solver, which achieves 0.06 solutions per second, and private CPU solvers, which achieve 2 solutions per second (all single-threaded an a high end Intel Core i7).
Either way, if you know OpenCL or CUDA, you can probably land some easy money here.
so calculate yourself, 5 investor = 1 MIO Dollar!