When is the last time you thought about how you enter searches in a tool like Google?
Take a quick look through Google's How to Search on Google article, then go a step further and check out Refine Web Searches.
Making use of advanced search screens can help you hone your search skills!
Google Advanced Yahoo Advanced
Also -- try limiting your search by domain (.edu, .gov, .org, etc.) by typing site:.edu in the box along with your search terms.
University of Alberta's Clothing and Textiles Collection houses more than 23,000 clothing and textile-related artifacts with local, national, and international significance.
The Kent State University Museum includes a searchable online catalog and gallery of costumes.
The Museum at FIT (Fashion Institute of Technology) includes access to current and past online exhibitions.
Many prominent designers have their own Web sites. It may take a bit of looking around to locate their "About" page.