Worldcat and its subsets (see below) can be used to find archival collections; use specific names, events, or time periods to avoid being overwhelmed by extraneous results. Catalog records of archives can be detailed and if you are lucky will contain a link to a finding aid (only rarely will a catalog record contain a link to full text). Examples of good finding aids, prepared by the UMBC archivist, can be found on the Special Collections archives page.