This comic strip is amazing. http://abstrusegoose.com
Other favorites:
http://abstrusegoose.com/99
http://abstrusegoose.com/96
http://abstrusegoose.com/34
http://abstrusegoose.com/56
http://abstrusegoose.com/9
http://abstrusegoose.com/80
http://abstrusegoose.com/18
http://abstrusegoose.com/92
