This is a very small new thing. I made it to make me feel better when I was feeling a little bad. It's sort of a love note to the internet, and a hopeful piece of art.
On this site you can create threads, weaving together stuff across the internet. If you make a thread it's just for you, it doesn't get published or added to a feed anywhere. Instead, you can share a link to it wherever you want, and the people who find that link can submit replies. Soon, you'll be able to prune a thread as it grows too, shaping it to be the conversation you want.
Others who find your thread can also follow along as a it grows. Once they subscribe to threads they'll get an email with all the latest replies once a day (at about 10AM ET). But in a week all threads meet their end, and the conversation must continue elsewhere. Perhaps a new thread, grafted in, at the end.
I hope that this tool can make it a little more possible/alive/fun for you to create on the internet. Do it wherever. Twitter. Gists, Are.na.