SitePrep calls BuildingBlok a revoutionary system…

“The BuildingBlok system “revolutionizes” control of construction projects from start to closeout with a comprehensive suite of features that includes invitations-to-bid, file manager, daily reports and financial management, among others. Users manage their budgets online, and the system tracks and automatically administers the approval process for change orders, pay applications and invoices, says BuildingBlok.”

Source