Researchers: "I wish I could do a Google search, but just for the sites I care about, not for the whole web."
Librarians: "Good news! Anyone can create a custom search targeted at a specific group of websites."
The technical side of creating a Google custom search is easy; you probably won't even need this documentation. The hard (but also fun) part is deciding which websites you want to include in your custom search.
All Yale's news subscriptions & databases
Open Access Theses & Dissertations
ProQuest Dissertations & Theses Global
Conference Proceedings Citation Index
ASPR Technical Resources, Assistance Center, and Information Exchange
Harvard Think Tank Search
information produced on all levels of government, academics, business and industry in electronic and print formats not controlled by commercial publishing, i.e. where publishing is not the primary activity of the producing body -- from Grey Literature Network Service
High-quality information created and shared outside the scholarly communications infrastructure of journals and traditional publishers
Reports, white papers, dissertations, conference papers, and data -- all things you won't find in PubMed!