I'm a bit of a lazy fellow when it comes to adding links to posts/comments on StackExchange sites. I've been participating in some Area51/SE sites lately where I find it particularly hand to reference source materials (books, articles) very frequently. Even on StackOverflow itself, I think the frequency of linking to developer resources is quite high.
Hemce, my proposal is to provide some sort of auto-suggest/auto-complete/keyboard-shortcut feature that allows you to paste a plain old URL and have it formatted into
In any case, a feature along these lines would save me a good deal of time. I feel it would also encourage better referencing/citing by all users on most SE sites, especially in comments.