I realize I already failed at Top 5 in theory, but hear me out. These three sites are kind of in the same vein, hence they are one pick. If you enjoy snarkiness (which I think may have been the reason the Internet was invented), this trio is approaching the peak of Snarky Sh*tstorm.
I strongly suggest for both of these blogs you go back to the ABSOLUTE beginning and read that way. They are both incredibly heartwarming, and really make you feel like these people are letting you into their world, baring their souls.