Hi, Osorin. I deleted the article, because it didn't assert why the web service is notable. There is a bunch of things I can link you to where you can read more, for example mainly WP:A7 an WP:WEB, but also pay attention to WP:N, and if you are somehow related to the company that supplies the service, WP:COI. The best way to demonstrate notability, is by showing there exist independent reliable sources, that provide significant coverage on the subject. Every part of that phrase matters, so the sources have to be independent of the subject, they have to be reliable sources according to Wikipedia standards (the main part of that is: there has to be editorial review of the sources, see WP:RS), and they have to be about Teamness itself, not just mention it. I myself presumed there were none, because the article didn't state why it is important so that there would be sources about it, but I always love to be proven wrong on this! (See also: WP:WMD)