Clectin (www.clctin.com) was started in 2013 and allowed its users to share and show off their collections with other collectors.

Unfortunately, as we’ve seen with many other collector sites, Clctin has not grown to critical mass and will now be closing. While Clctin users will have to recreate their collections they will be offered all the functionality of the old site and much more (as well as the ability to own part of their new site!). 

We believe (similar to the the case for Wikipedia) that the community is best served with one comprehensive database for all.