Every volunteer project obtains its strength from the people involved in it.
Mailing lists provide a simple and effective communication mechanism.
You can choose to lurk, or actively participate. It's up to you. Before you join these lists, you should look over the resources in the Reference Library section. This also includes the one way announcement list and the 'commit' lists. The latter are automated mailing lists which contain a record of any changes made to the source code, by whom they where made and why.