Have you even gone online and just not been able to find anything? Even when using a search engine?
Or have you just thought that you keep on going to the same websites?
Then I suggest you take a look at stumbleupon.
Stumbleupon is a small add-in for IE or firefox which basically allows you to choose what types of things you are interested in and then channel surf through a large number of sites which have been voted for by the community. Obviously certain terms and topics are more popular than others but I have found that stumbling through terms for AJAX or Web 2.0 bring up some new sites on average every couple of days and allow me to follow the links through from these sites.
I'm certain I have found a number of very useful and interesting sites through this approach and I would recommend it to anyone.