Here's another game where I resigned after blundering my queen.
Resigning as soon as you've lost your queen

I DO NOT AGREE THAT IS NECESSARY RESIGN IF YOU ARE A QUEEN
THIS GAME IS ABOUT HOW TO WIN A GAME IF YOU ARE DOWN A QUEEN !!!!
THAT IS IT !! I CAN WIN A GAME IF I BLUNDER AND LOSE A QUEEN AT THE BEGGINING.
SEE THE ANALYSIS OF THE GAME IN THE LINK BELOW, GAME AT THE POST #84

canadaprodigy845,
Did you know that at move 10 after Bxf2+ Ke2, Bg4+ Kd3 that there's an even better move than Bxd1? Particularly, Nb4#?

Try playing against any chess engine trading a queen for a pawn/minor piece/rook with no compensation and you'll notice that the evaluation meter shows that the engine is winning by outstanding numbers and you're just hopeless/losing in all variations. The thing is, a Queen is the most powerful/forcing piece in the game, and is known for being the key for most succesful mating attacks, as well as being able to add pressure to multiple targets at the same time.

lihuelp is absolutely right. Sometimes we need to look at the imbalances in the position before we resign. I've made blunders and still gone on to win the game anyway.

By the way, I've just played a game against an opponent and we're in an endgame where I have a rook against a bishop. He moves his queen where it can simply be taken and resigned after I took it with my rook.

I DO NOT AGREE THAT IS NECESSARY RESIGN IF YOU ARE A QUEEN
THIS GAME IS ABOUT HOW TO WIN A GAME IF YOU ARE DOWN A QUEEN !!!!
THAT IS IT !! I CAN WIN A GAME IF I BLUNDER AND LOSE A QUEEN AT THE BEGGINING.
SEE THE ANALYSIS OF THE GAME IN THE LINK BELOW, GAME AT THE POST #84
http://www.chess.com/forum/view/game-analysis/the-most-interesting-game-of-chess-was-played-here-in-chesscom?page=5
Dear Marco, I can perfectly read you post without the
BIG RED letters, please. And can enjoy your views on
the "addictive" potential of chess, like any "game".
Like for any of us, the ego is your best friend, and
possibly your own worst enemy, sort of speaking...
Or anything, and all, inbetween ..
Keep on challenging others, and yourself .

Sometimes when my plan backfires I try to force a queen swap. Sometimes it works. I think it throws off some players.

Many people depend too heavily on the queen. I remember losing my queen in a few games and still winning the game.

Sometimes when my plan backfires I try to force a queen swap. Sometimes it works. I think it throws off some players.
This have been one of the traits, or tricks, of Magnus Carlsen.
Get rid of those complicating Queens, and grind on from there ...
:- )

It all depends on the rating of your opponent. 1000? Go right ahead, there's a good chance they blunder the material back. 2000? Not a chance you're going to come back. It's online, so rating doesn't matter. If you drop your queen, you'll learn more by resigning and asking for a rematch.
Obviously, if you have good counterplay for the queen, play until that counterplay is gone, but a queen for a piece is, in most positions, worth resigning.

So says the 898. Up until I was ~1300 I agreed with you. In tournaments it still takes a lot for me to resign. Online though, it's not worth your time once you have a >1300 rating. It's not as though my online rating matters at all, I'm just playing for practice. Is forcing someone to play out a K+Q+5 pawns vs. K+N+6 pawns endgame really going to help you?
Here's a time I resigned after losing my queen. I had black pieces.
Like "DartFrog04" have pointed out allready :
After "sacrificing" the black Queen, the road is open for
black Bishop ( at c5 ) to take pawn at f2, and check mate.
- non ?
" Sometimes giving up too soon is too soon ..".
...