I´m learning keigo at the university japanese course now, and i think i need some more practice than that which is in minna no nihongo (duh). Does anyone now a good site to practice keigo or some good (short) storys where it is often used?

Books written for foreigners learning 'business' Japanese will be heavy on keigo.

Chapter 8 of the Nakama 2 textbook teaches keigo. For a dedicated book on (business Japanese) as Womacks23 suggested is a book we used for our 'Situational Japanese' class. It was;

Getting down to Business: Japanese for Business People
ビジネスのための日本語。
Mine is 初中級, but you can get higher level depending on your Japanese level. It's an okay book, I got bored of it easily though.

Dairwolf Wrote:I´m learning keigo at the university japanese course now, and i think i need some more practice than that which is in minna no nihongo (duh). Does anyone now a good site to practice keigo or some good (short) storys where it is often used?

This list might be some use: http://books.sljfaq.org/index.cgi?category_id=62

The "A programmed course ..." book
http://books.sljfaq.org/index.cgi?book_id=164
is quite well known. This might be what you're looking for.

Most of the "Nihongo notes" books are about respect language:
http://books.sljfaq.org/index.cgi?series_id=27
Good to borrow from the library rather than buy.

This book, "rules for conversational rituals ..."
http://books.sljfaq.org/index.cgi?book_id=470
might be interesting. It uses the dialogue from the "Otoko wa tsurai" films to illustrate its points.

If you have any other ideas, let me know & I can add them to that page.

UBJG has a good chapter on basic keigo.