Stitch It! allows you to create one seamless image of a text message conversation so that you can share it on your blog, Facebook, Twitter, Reddit, or anywhere else in the series of tubes that is the webernet machine. Stitch It! also allows you to remove (redact) details from a conversation that you might not want to share.
See it on the app store @: https://itunes.apple.com/US/app/id554594252