I'm looking for people with the same last name as mine (that is, "Stea") to set some kind of family tree - it's not so a common surname, so maybe we are all far relatives. I know for sure that people like those exist in the USA too (I'm Italian, for those who still don't know).
You'll agree that the most simple thing for me from here would be sending them an e-mail. The point is, I find very difficult to search for e-mail addresses, because every People Search Engine I find using Web Search Engines gives its own (very few) results; some of them don't display the full address for a privacy policy and just let me send a message, but without any attachment or so (I made a family tree with Excel); and about 80% of the e-mail addresses I can find, they just don't work.
For example, Yahoo! gives me 3 results, none of them working.
So: can anyone provide me any suggestion (links appreciated) to the very best and largest e-mail search engines (= I put the last name and it gives me email addresses)? It looks like the ones I found have a quite small database. And is there a Hotmail users database? I remember they asked me if I wanted to be put in a directory when I signed.

Well, actually, the most useful addresses would be the Italian ones; and, following:
U.S.A; Croatia; Slovenia; Albania; Spain.
So any Email Searcher for these countries would be good for me.
And, by the way, don't you know anyone with that last name?