Polymath4 is up and running. Here is a url for the research thread:
http://polymathprojects.org/2009/08/09/research-thread-ii-deterministic-way-to-find-primes/
Let me update this. There is now a new research thread:
http://polymathprojects.org/2009/08/13/research-thread-iii-determinstic-way-to-find-primes/
Let me update further. There is now another new research thread:
http://polymathprojects.org/2009/08/28/research-thread-iv-determinstic-way-to-find-primes/