Years ago I moved to a town north of Milwaukee. Every now and then someone would call me Jaques. Since I didn't know them I mostly said "Hi," and went about my business. One evening I was sitting at a bar and the bartender said, "Damn, you just walked in the door and all this time I thought you were here." I turned around and looked but didn't see much of a resemblance to myself in the fella that just came in. Until he sat at the bar and I looked at his reflection in the mirror on the back of the bar. . . We looked a lot alike. Side by side it was easy to see the differences but I imagine to someone who only seen us once in a while it was probably easy to mistake us for one another.

Indeed. Thats cool, but it shouldnt show every detail from the other person. A chat with the other person will be more interessting than details of him/her :D

There's currently a site like this somewhere, but it only matches celebrities.

Also, I believe that the similarities probably stretch into the dozens, if not hundreds. I'd be more interested in those who are of a different race, or who live in areas I don't expect (e.g. states/countries I know that I don't have relatives in).

I have a cousin that looked alot like me when we were a little bit younger. Same facial structure and everything. The problem is, my cousin is female. I don't know if it's an insult to me or to her.

Also, I seem to have a twin in my current town. I've only caught sight of him a couple times, but I know he's there. I still have the occasional person greeting me thinking I'm him.

Could we have an option on the site where people could be labelled as the evil or good twin/septuplet/whatever ?

http://www.idavista.com/findmytwin/

The site would still need better than 850 Million photos before a twin shows up, at least strictly by the numbers.

I like the idea of people unknown-to-each-other discovering something in common and forming an affinity group because of it. One version of this that's become very popular are online groups of people with the same name. Some of them hold annual get-togethers. Cartoonist Keith Knight did a strip about the interesting people he'd met at a convention of the 153 people in his group. And blogger Marc Rodriguez was amazed to discover and interact with others who share his name, which he'd thought was unique.

Just Google for your own name and who'll find others who share it. (I share mine with: An author of children's books, an official in the British patent office, and a British columnist on auto-racing.)