With these three plug-ins, you can search three specialized University of Michigan library collections:
Mirlyn Search Mirlyn is the University of Michigan library catalog. There are three separate plug-ins, one each for general search, title search, and author search.
OAIster Search OAIster is a union catalog of over 12 million digital resources, gathered from all over the world. This plug-in provides a keyword or phrase search of the catalog.
Deep Blue Search Deep Blue provides access to the best in UM-authored scholarly and creative works. There are plug-ins for the collection as a whole and for the Ross School of Business Working Papers series.
Once a plug-in is installed (see instructions, below), simply select it from the search box's menu (by clicking on the icon -- probably the Google "G" on most browsers) and selecting the search engine you wish to use. Type search terms as usual, and push the return key.