Here's a start: Music and Words Cover, and also Index of /coverart Those sites are limited to what they have. But you can google for them.

Lyrics: Lyrics
(though I have several lyric sites bookmarked on old computer. I sometimes add lyrics to my mp3's id3 tags.)

But to use LW, not sure how many people share cd covers. Would need to be either an image or program search I guess. Search the artist or album I guess. But you'd probably get a lot of spam also.