Now here is an interesting idea. A web app that promotes social collaboration on documents in progress. The service is called Entri (link here) and it is essentially an on-line document editor with collaborative features. It’s free and quite simple to use. Log in with your Twitter ID and you will see a text editor box, with basic formatting, image insertion and link creation features. There is a delete button, a lock button, a “get HTML” button and a save changes button. You can scroll through your Entri’s as well. Versions show on the right side of the screen and you can invite your Twitter friends to engage in the process of editing your document.

What’s the purpose? Entri provides a decent, stripped down text editor that you can use in a pinch to write and secure feedback. The suggesetd use offered on the site is roughing out a blog post and then inviting your followers to add their input into the mix before posting in final form on your blog. Entri advises that integration with the mainstream blogging services, such as WordPress, is coming, but for now you can copy and past the HTML generated on Entri right into your blog’s text editor.

Kind of a cool, special-purpose tool.