They aren't considered legal from what I have heard. Some of them get by, by saying they are only hosting what submitters send in...and that it is more of a forum than a archive site.
OLGA gets by with hosting guitar tabs, most with the lyrics on there. Not sure how they get away with it.
lyrics.ch used to be an awesome/clean lyrics site that got a lot of traffic. But one day several years ago they posted where a special forces team busted into their house (whatever country they were in) and seized all their servers. The domain has been bought by songtext.net now, but the lyrics.ch site has never been online since.
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