SharePoint 2010 Migration Articles
http://www.sharepointpromag.com/article/migration/migrating-to-sharepoint-2010
http://social.technet.microsoft.com/wiki/contents/articles/8666.sharepoint-2010-best-practices-en-us.aspx – this link is very useful for all migration troubleshooting, procedures, etc
http://technet.microsoft.com/en-us/library/cc263447.aspx
http://rcpmag.com/articles/2010/07/01/migration-madness.aspx
http://info.axceler.com/Blog/bid/51255/Understand-Your-SharePoint-Customizations-Before-Migrating