As always, Jeremy Stretch posted several interesting articles: how to hijack HSRP, introduction to split horizon in distance vector routing protocols and (long needed) default redistribution metrics.
Petr Lapukhov started playing with HTTP URL regular expressions within NBAR and documented his findings. The most interesting is the last Q/A pair: can I use NBAR as a content filtering engine?
And last but definitely not least, if you’re worried what will happen to WPA2 now that WPA has been cracked, Robert Graham explains the fundamental differences between WPA and WPA2. Also, make sure you read the detailed explanation of the WPA flaw to understand its implications.