Don't know where to start? Try one of the following database portals. They allow researchers to search across multiple databases produced by the same publisher. These portals work best when you search for proper names (ie. Carter G. Woodson), events (Albany Movement), etc. and narrow by geographic focus and date. Try sketching out a "who," "what," "when," "where" list for your topic before diving in!
Image, Flicker, Cutty Sark, "question mark"