Here's a good article I found in Microsoft Office website. It's about syncing Sharepoint 2010 with your Outlook 2010. You can check it out here: http://office.microsoft.com/en-us/sharepoint-foundation-help/synchronize-sharepoint-2010-content-with-outlook-2010-HA101881295.aspx#_Toc262734699
But did you know that Sharepointboost has its own Sharepoint Outlook Integration? Syncs and supports Sharepoint 2010.
SharePoint Outlook Integration allows for expedient distribution of e-mails or attachments from Outlook using SharePoint's lists and libraries. Simply drag and drop your e-mails to appropriate folders in SharePoint Outlook Integration's interface. SharePoint Outlook Integration also provides e-mail archive development for Outlook into SharePoint.
These conveniences saves time sharing vital information from Outlook via SharePoint and backs up your critical e-mails, so you can concentrate on your priorities.
Know more about Sharepoint Outlook Integration here.
