reached more than 31,000 book titles, was renamed Bookogs following legal issues with the original name, and removed 'Beta state' notice from the main page. The next day the Marketplace Beta feature was presented. On 8 June 2019, the project reached a total amount of 100,000 books. The site was closed down on 31 August 2020, counting more than 154,000 books and 345,000 credits. Comicogs Comicogs launched around the same time as Bookogs, as a means for comic collectors and enthusiasts to catalog their collections and create an archive of comic releases. Similar to Bookogs, users could contribute comics, manga, graphic novels, and strips to the database, along with information on credits, publishers, writers, etc. 18,000 comics were submitted by the start of 2018. The Comicogs marketplace was launched on 23 August 2017, allowing users to buy and sell comics from across the world. The site was closed down on 3 August 2020. Posterogs In September 2017, the company launched Posterogs. Posterogs was the only Discogs site to launch a database and marketplace simultaneously. The scope of Posterogs was left broad at the time of launch, with the company opting to let the community define what type of posters, flyers, or similar, should be included in the database. While non-music related items were fully acceptable for inclusion, much of the primary focus seemed to be on music posters, such as gig/tour posters, album promo posters, and promotional flyers (in keeping with Discogs' music theme), though there were also many film posters in the database. As with all other databases, users could save items to their 'Collection' and 'Wantlist', in addition to buying and selling in the marketplace. The site was closed down on 31 August 2020. API In mid-August 2007, Discogs data became publicly accessible via a RESTful, XML-based API and a license that allowed specially attributed use, but did not allow anyone to "alter, transform, or build upon" the data. The license has since been changed to a public domain one. Prior to the advent of this license and API, Discogs data was only accessible via the Discogs web site's HTML interface and was intended to be viewed only using web browsers. The HTML interface remains the only authorized way to modify Discogs data. On 7 June 2011, version 2 of the API was released. Notable in this release was that a license key was no longer required, the