Type on the web has a lot to be desired. I’m sick of going onto blogs and seeing 5 different fonts on the same page. Though I do agree that menu needs to be differenianted. I prefer the more suttle approach of colour or line rather than a different font.
Saying that not all type on the web is bad. I was linked to a great interactive game that test your kerning skills. I didn’t do too badly at first getting 93/100 but like with anything you gain enough practice and taking your time it’s possible to get 100/100.
Give it a go, it’s a great interactive game.