What are some common chess traps? What are some of the most common traps to be aware of?  

I am talking about examples such as


The Fishing Pole Trap
The Lasker Trap in the Albin Counter Gambit
The Rubinstein Trap in the Queen's Gambit Declined
The Noah's Ark Trap in the Ruy Lopez


While such traps are easy to avoid in long games, they can come up and be quite effective in bullet games.
One sort of not-always-obvious trap that players can fall into are pawn forks that aren't immediately apparent in a given position. For instance:

[FEN ""]

1.c4 e5 2.g3 Nf6 3.Bg2 Bc5 4.e3 Nc6 5.Nc3 d6 6.Nge2 Be6 $2 7.d4 $1


Here White wins material since 7. d4! gains time against the bishop on c5, and can then push on to d5. I've actually won with this exact tactic in more than one OTB tournament game, even against A-class players; and in internet blitz it's happened countless times. If you're not used to playing the black side here, I think it can be easy to miss the shot before you let go of the bishop on e6. This same kind of scenario can arise in other positions with a lot of centrally-located minor pieces.