You asking what to do on this site? There are many things:
- Just something interesting to read (PGE Wiki), documentation, information, articles, etc.
- Download various software here (PGE Project or SMBX38A) and their experimental builds or fixes
- Discuss or find anything interesting at PGE Forum here (there are lot of thematical topics and sections for discussing and reading)
- Also some many other things I may forget.