The ipl2 Literary Criticism Collection contains critical and biographical websites about authors and their works that can be browsed by author, by title, or by nationality and literary period. The collection is not inclusive of all the work on the web, nor does it plan to be. The sites are selected with some thought to their overall usefulness.
This major site includes extensive biographies, works, study questions, and more on American authors. (Site Creator: Paul Reuben, PhD, Professor Emeritus)
When searching websites in general, most people use comment search engines such as Google, Yahoo!, Bing, etc. As stated above, these search engines may bring you millions of hits. As suggested, databases are more reliable way to go; however, there are also many specialized search engines that may help you narrow down the search. Using specialized search engines will assist you in selecting more trustworthy sources. Included below are some links to the most popular of those sources (Source: Writing Term Papers by Joe Greek).