They have created a monster!
...PI's introduced clicky ponies. You just use their handy little generator and they will create a clicky banner of any of your ponies, handily set to link back to the pony in question. If people click the banner, your pony gains xp - not much, mind, but a little.
...it's a bit more fun than it really should be. I want to make one for aaaaaaaaaalllllllll of my ponies...on aaaaaaaaaaalllllllll of my accounts! XD
As it is, I've already made them for each of my accounts. *cough*
...I can stop any time! Really! Honestly! ^^;