Geekolinks: 4/19

Portal 2 review (Rock, Paper, Shotgun)

OKCupid teaches us that Twitter users have shorter relationships (The Mary Sue)

Fidel Castro says he won't be part of the Communist Party's central committee (Bloomberg)

18 reality show clichés we never want to see again (The A.V. Club)

Go play with Otomata, an online generative sequencer (EarSlap)

Now that Google Video officially called it quits, check out the Best Of on MetaFilter (MetaFilter)

What makes people so frightened of the Daleks? After all, they're trashcans with plungers (University of Cambridge)

(title pic possibly fake but totally awesome via BuzzFeed)