Of which, there is little.
Dylan Larkin is the best. On this, there can be no debate. That is all.
If you're new to the WIIM Summer Photo Caption contest, it's very simple. That banner picture at the top? Write a comment about it. Give it a caption. Use words. Use pictures. Use .gifs. Use Microsoft Paint. Use whatever you can come up with to create the best caption you can. Make it funny. Make it clever. Make it memorable. Make it fun.
Now we get to the really fun part. You'll see a lot of other people captioning the photo.