We have compiled a list of best practices for everything from working with SharePoint Lists to disposing SharePoint Objects, from writing SQL syntax queries for relevant Search results to developing Workflow solutions. Also, you can quickly access the latest information from patterns & practices specific to SharePoint, all in a one-stop shop! http://msdn.microsoft.com/en-us/office/dd638301.aspx
Send us feedback about what else you'd like to see SharePoint Best Practices written for, and we will maintain this page as a living document of best practices guidance.
