Summary Link Web Part
http://community.bamboosolutions.com/blogs/sharepoint_blank/archive/2009/04/27/the-moss-summary-link-web-part-part-1.aspx
http://office.microsoft.com/en-us/sharepoint-server-help/use-and-configure-a-summary-link-web-part-or-a-summary-link-field-control-HA010155168.aspx
