A bundle of 3 products in one pack, enhancing and complimenting the default SharePoint lookup column function at lesser cost! Designed to fully complement each other, these three enhancements offer a suite of features that dramatically leverage your SharePoint lookup functionality.
Quickly cross-reference data from a list or site then apply a combination of filters to reduce the options presented in menus to eliminate error from incompatible values.
Cross-site Lookup refers to information from another site, while Cascaded Lookup establishes more relationships with lists then trims down lookup information as choices in lists are made. Lookup Boost summarizes information related to an item in a list.
Working with these three powerful tools greatly enhances SharePoint data and information lookup, setting a wider reach of information between SharePoint sites and users at the same time cutting down lookup errors.

Cross-site Lookup is a much simpler but feature-packed lookup tool that gets information from any site in a site collection. A find-as-you-type functionality filters items displayed in the lookup field according to a view defined in the source list. To know more, check out the Cross-site Lookup page.
Cascaded Lookup is also a lookup tool but with more powerful features and establishes more relationship with lists. It creates more choices on dropdown menus but at the same time cuts down choices as data is specified within each drop-down menu, thus also cutting down lookup time. To know more, check out the Cascaded Lookup page.
Lookup Boost - summarizes all information related to an item in a list. The page displays not only all items from which this item looks up, but also all items which look up information from this item. A "Related Information" link displays all connected information of the item. To know more, check out the Lookup Boost page.