The easiest way to set a TG caption site is to use blogger. Just sign up for a free account and you are set to go. Another popular way to do it is to use tumblr which is more geared towards pictures. I prefer blogger because it gives a little more control and versatility for my taste. I'm happy to see you want to make a caption site. We need more of those around. Make sure you write all your posts wearing sexy underwear for a successful blog.