You are definitely right in that the best way to learn writing copy is by hand-writing out old adverts, preferably profitable ones...

You can find a multitude of copywriting tips at these sites (not exhaustive but just the ones that spring to mind)

www.thegaryhalbertletter.com (FREE)
The late, great, Gary Halbert. This site has about 200 newsletters, each in individual browsers. Make sure you download them all (because you never know when the site might go down) and if you have the time, write out all of the newsletters BY HAND.

www.bencivengabullets.com (FREE)
Gary Bencivenga. He retired a few years ago, but he still produces an e-newsletter.

www.makepeacetotalpackage.com (FREE)
A daily newsletter from Clayton Makepeace, with numerous guest contributors, and also covering all realms of direct marketing

www.copywritersboard.com (FREE)
A forum that is frequented by many well-known copywriters. It even has a critique section where you can get tips form other copywriters on how to improve your ads.

www.infomarketingblog.com (FREE)

www.hardtofindads.com (FREE)


That little lot should keep you busy...