I’ve been fortunate enough to be able to write for some great sites. I’ve attached links to my contributions on this page to read – I recommend you have a good look at the sites themselves as there is a lot of great content there!
Ran by Dylan Cornelius, Sega Does is a superb site looking to review every Sega game ever made, I offered to help as I know that is a ridiculous amount of games to play.
Ran by The Well-Red Mage, this site is home to intelligent critique on books, games and films, as well as thoughtful articles on related issues. I write as The Hopeful Handheld Mage on this site, looking at handheld games (and old Sega games, when I get the chance!)