other

http://www.chrisroberson.net/blog/ its purpose is to tell you about sci-fi books

advertising & promotion

http://saintsrow.wikia.com/wiki/Blog:Recent_posts its purpose is to tell you about games

inform & educate

http://www.nextmovie.com/blog/iron-man-3-easter-eggs/ its purpose is to tell you about movies

entertainment

http://footballblog.co.uk/ its purpose is to tell you about