Help your potential matches find common interests.
Music: Leonard Cohen, Monsieur Camembert, Marian Call, Jonathan
Coulton, Gogol Bordello, The Turbans... and many more!
Authors: Terry Pratchett, Jim Butcher, Isobelle Carmody, Robin
Hobb, Jim Hines, Neil Gaiman, Garth Nix, Juliet Marillier, L'Engle
and pretty much any re-telling of fairytales... and many
Movies: pretty much anything by Studio Ghibli, Amelie, The
Avengers, Iron Man, Kill Bill, Monty Python and the Holy Grail,
Pan's Labyrinth, Eternal Sunshine of the spotless mind, Big Fish...
and many more!
TV shows: pretty much anything by Joss Whedon (although Angel was
less awesome than his other stuff), Sherlock, Black Books, Doctor
Who, Torchwood, QI, Orphan Black, various anime series whose names
I can't remember at the moment...
Games: snes rpgs like Earthbound, Mother, Chronotrigger, The Sims
(and variants), Pokemon. I would be a huge fan of more recent rpgs
like Skyrim, but I don't have the co-ordination to deal with a 3D
game world :(
Food: most desserts (although not a huge fan of pastry), cheese (in
almost all its formats), olives, lemon thyme, tea, dumplings
(drowning in dumpling sauce!).... and more!