>Has anybody advices on good places where to buy gyokuro on the Internet ?

http://www.chajin.co.jp/

Site is in Japanese, run it through a translator. Manager is able to
communicate well enough, in somewhat broken English, to do business
via email. They take major USA Credit Cards. Prices are good and teas
are great.

No affiliation, just a very satisfied customer.

--
Mike Petro
http://www.pu-erh.net