At the reception I suggested setting up a web site where all the wedding guests could send their photos to be collected in one place. Of course, a certain person told me I should just write the software…

But this site appears to do the trick:

http://www.cellblock.com/

As far as I can tell, you sign up to create an e-mail address in the form “galleryname@cellblock.com”, then anyone can e-mail photos to that address and have them immediately show up on a web gallery (or you can set it up so that content must be approved before it shows up).

Haven’t tried it myself, just thought it might be useful.