I've noticed lately that we've been slacking off in backing up answers with sources. Eric's question about extending and curating answers got me thinking about it more.
It's a worrisome trend. If we want to attract more experts, encourage growth, and execute the Stack Exchange mission of making the internet better, we need to make sure that we're bringing outside knowledge to light. As Jason Fried said, "the more you send people away the more they’ll come back".
Should we make an effort to encourage higher quality answers? If so, how?