HeinOnline has launched a new interface and has created a video explaining the changes to the system. The changes to HeinOnline are both cosmetic and functional, including changes to how the system determines the relevance ranking of results.
ProQuest also recently debuted changes to its History Vault and Congressional interfaces. A notable change to the ProQuest interface is that options to filter search results now appear on the left side of the screen, instead of the right side of the screen. For more information on the new Congressional interface, please see this ProQuest page. For more information on the new History Vault interface, please see this ProQuest blog entry.