Does any one know of any popular polish chat and blog sites???
Funny you should ask, I've been writing a blog about my experiences of living in Poland:
batorego.wordpress.com
I've been looking, but I haven't come across many others in English (not particularly surprising I suppose). There is also:
polishpress.wordpress.com
which is a very interesting roundup of Polish news stories translated into English.
As inkrakow has already pointed out, these are also interesting:
threemonkeysonline.com/blogs/grodsk
beatroot.blogspot.com
although they are both heavily political.
I'd love to hear about some more 'personal experience' blogs if anyone comes across them.