Hello and welcome to a fun place to hang out.
Since I don't have a first gen anymore....
But is it certain sites doing this to you? The Drudge Report http://www.drudgereport.com/ causes me to crash sometimes, but that's the only one. Sites like this are massive and can really cause problems, but it is a very informative place to visit.
No it seems to be pretty random, as mentioned previously I never had an issue hat I can remember before the last update.
Rob.