In what locations throughout the world does your surname occur? to which countries did your ancestors emigrate and settle down?
Search for a surname to view its map and statistics on PublicProfiler/WorldNames.
Once you know where those surnames occur, you have more options for tracing your heritage.
Type a surname into the search box, and click the search button (it doesnot work as well if you press the enter button.) The color coded map will inidcate location of greatest occurrence; and if you click on that location, you will see an expanded map showing name distribution in greater detail.
Phonebooks for those countries, or social networking genealogy websites, will put you in touch with your distant cousins.