As you might know, one starts the research from oneself going backwards generation by generation gathering documents and pinpointing the location of each ancestor. It is all about LOCATION, LOCATION, LOCATION.
When did your ancestor come to America? You have arrival manifest? Was he naturalized citizen? What was language of your ancestor? What did he considered himself to be? http://genforum.genealogy.com/how-to/http://www.geneasearch.com/beginner.htmhttp://www.rootsweb.ancestry.com/~rwguide/