The first is a site full of [mostly] cats, with captions, written in LoLz language: which is a kind of funny cat lingo with some[purposeful] misspellings. Here are a few good examples:



The site: http://icanhascheezburger.com/page/8/
(Yes, start on page 8. I did that on purpose).
The second site is similar, except every caption says "Fail" and it's only dogs. You'll see why:
http://faildogs.com/page/2
Enjoy!