When viewing a user's profile, you can see what answers they have added to questions as well as which of their answers were accepted.
It would be nice, however, to have a way to see if a question has an accepted answer that isn't yours. Perhaps a small icon or change in border that states:
This question has an accepted answer ... but it wasn't yours.
It would help me to know just how many people are being lazy and not accepting answers, as well as how many people have just decided not to listen to my moronic ramblings.