Few Nice blog posts I found
Publish your Access database to SharePoint
http://blogs.technet.com/b/hub/archive/2010/11/08/publish-your-access-database-to-sharepoint.aspx
Publish to SharePoint (part 1)
http://blogs.office.com/b/microsoft-access/archive/2009/11/23/publish-to-sharepoint-part-1.aspx
Creating Web Databases with Access 2010 and Access Services