One of the first online bingo halls - Amigo bingo bingo represents solid 75 ball bingo gaming. This site still accepts US players, but has branched out, offering service in Spanish, French, English and Portuegese. Alexa suggests that their player base is 55% American, 10% from Portugal, 10% from Spain and 10% from France. The Amigo Bingo network spans over 50 sites, so if you find a site such bingoamericano.com and feel like you are playing at Amigo Bingo - you basically are.
The game used to be available in Flash, Java or download format - but I think that they have removed the Java option. They specialize in straight 75 ball bingo with card variations - not alot of slot machine or tab card upsells. If you are a veteran online bingo player, chances are good that you have tried your hand at an amigo bingo network site, but if you haven't they do offer a 300% signup bonus. Accounts are sometimes credited with bonus money on player appreciation days and they do have the odd free game. The .01c games are also a great way to kill time if you are not in it for the big payoff.