Do you think i can earn from adsense by using blogger? or should have buying domain? and blogger need so much seo or not? as i know google love blogs especialy blogger
Yes u can, you should have blog and unique content + visitors = much money... Read this post: Some Valuable Adsense Tips
Yeah i obviously think. Huge people are making money through blogger with Adsense. If you are talented enough you also can earn.
Blogger is belong to Google. It's very for SEO and indexing to good page rank. But hard work is how to make you blog getting a huge traffic hitting it. I think contents is a king whether you use original url of blog or buy new domain. If they are low quality of contents, page will sleep down, nothing with it all!!
I agree with you entirely Michael, I've found blogger great at getting my new pages on my "Real" blogs indexed very fast by using it to link back to them, but it's made virtually $0 in adsense over the years.