If you had missed Martin's TV Tropes page, do read it. If you hadn't seen some of the memes off tumblr, TV Tropes will guide you. :D
Fan art: Johnlock. One of my very favorite bits from Sherlock to Mycroft, in Study. Another flavor of Johnlock: hacking! Another Keep Calm poster.
Spoiler zone of season 2!
Fan art: Watched Emmys... That Look from Sherlock in SiB. More Scandal juxtaposed: SHERlocked!
Screen cap from SherlockCares: Mycroft, don't you have...?
A stunning Believe in Sherlock image!
Composer Michael Price about the secrets in the Sherlock music.
Sherlock Holmes and the case of a new romance? Benedict and Liv.