Google's guide will tell you how to create and run a campaign in Adwords: http://www.google.com/adwords/learningcenter/ There are a few guides out there that tell you how to optimise a campaign, but this one (written by me) is free, and quite good (IMHO): http://www.epiphanysolutions.co.uk/google-adwords/
Check out this blog entry on to write effective text ads: http://blog.adtoll.com/2007/09/17/how-to-write-effective-text-ads/ Also, google PPC, CPC etc. and you will find a myriad of information. Searching in this forum is also a great start.
I wana learn some thing practical about the keyword analysis. I mean how to decide for which keywords to choose as a starter. How to test a keyword that comes to your mind. What are the criterias for a gud average and poor keyword.
The best way to find out if a keyword is good or not is to test it. You can analyse all you want, but there are times, (quite a few), when you'll be shocked that a keyword actually converted...
The best way to find out if a keyword is good or not is to test it Thats what my question is. Criterias and ways of testing a keyword.