Be sure to read the help file for the search engine that you are using. Everyone has their favorite search engine. It then gathers the results, weeds out the duplicates, and displays the best ones. Most of the disadvantages associated with search engines are still present, but Metacrawler gives you a quick snapshot of what a search engine will find. Like MetaCrawler, ProFusion automatically sends your search requests to a number of indices and organizes the responses.
ProFusion also provides a personalized search service.
This service allows you to register your regular queries, and let ProFusion run them for you periodically and tell you when there are new results. They even have a search routine to help you find just the right tool for your needs. For more on meta-search engines, see Edlines, Volume 2, Number 8 Written by Doug Adams.