SharePoint Cross-Site Lookup allows you to look up information from lists in another sites and filter Cross-Lookup fields by selecting list views. It lets users lookup from another site within a site collection and supports conversion from a SharePoint Cross-Site Lookup column to a default SharePoint Lookup type, which means you can alter the content of Cross-Site Lookup columns in the datasheet view. BoostSolutions' SharePoint Cross-Site Lookup find-as-you-type function makes all the objects in the Dropdown list with the same letter as the input word shadowed, which enables them to be selected quickly. You can also filter values of Cross-Site Lookup columns by selecting a list view of the looked-up list.