In addition to the help that can be found through my web site and those of O'Reilly, Microsoft, and Google, here are some otherSharePoint resources:
The newsgroups microsoft.public. windows .sharepointservices and microsoft.public.windows.sharepointservices.development are actively supported by the SharePoint community.
The FAQ at http://wss.collutions.com answers a lot of specific questions.
The site at http://www.wssdemo.com provides excellent examples of ways to handle content in SharePoint.
A Resources section at the end of each chapter cites sources for help that is specific to the material coverered in that chapter.