Blog Types:

Personal

http://frogma.blogspot.com/

Professional

http://www.businesspundit.com/

Political

http://www.instapundit.com/

Corporate

http://tunersource.gmblogs.com/

http://csr.blogs.mcdonalds.com/

Groups

http://www.mpdailyfix.com/

Project

http://blogbusinesssummit.com/

Finding a blog.

Test example: Searching for Search Engine Marketing blogs

Plain old Google

http://www.google.com/search?hl=en&q=search+engine+marketing+blog

"Best of" and Awards Googling

http://www.google.com/search?hl=en&q=best+search+engine+marketing+blog&btnG=Search

Blog specific search tools

http://www.technorati.com/search/search+engine+marketing

One link at a time - widgets and blogrolls

http://searchengineland.com/ --> http://www.seomoz.org/blog (Through blogroll)

News/Buzz aggregators

http://www.digg.com/search?s=%22search+engine+marketing%22&submit=Search§ion=news&type=both&area=all&sort=new

http://del.icio.us/popular/seo

http://www.techmeme.com/

Who links here?

http://www.technorati.com/search/searchengineland.com

http://blogsearch.google.com/blogsearch?as_q=searchengineland.com&num=10&hl=en&ctz=240&c2coff=1&btnG=Search+Blogs&as_epq=&as_oq=&as_eq=&bl_pt=&bl_bt=&bl_url=&bl_auth=&as_drrb=q&as_qdr=a&as_mind=1&as_minm=1&as_miny=2000&as_maxd=7&as_maxm=5&as_maxy=2007&lr=&safe=off

Bios

http://www.searchenginestrategies.com/sew/ny07/agenda.html --> http://www.redbricksmedia.com/ ---> http://www.redbricksmedia.com/blogs/craig_seoblog/