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An external link to itsmpa.org has been removed from the IT service management article on the basis of not being an appropriate external link. A representative of the IT Service Management Professional Association has asked for reconsideration (diff), recommending the site as a valuable addition. Do you support inclusion of this site?   
Oppose: I do not feel this site fulfills Any site that does not provide a unique resource beyond what the article would contain if it became a featured article. from WP:ELNO. They are fairly recently founded and have thus not established themselves as a professional association and charge for premium membership, so one might consider this a commercial link.   
Clarify: Base Memberships are Free - Site was established 2 years ago, not sure what relevance that has since The group currently holds 1100 members worldwide.It is recognized by ITSMF and Industry Luminaries such as Mark McGregor, Steve Towers and Malcolm Fry.  —Preceding unsigned comment added by 134.134.139.75   
What is the criteria for INCLUSION.  There are a number of similar organizations listed, including the itSMF, ISACA, PMI.  In each case I see a membership based organization formed as a non-profit with the intention of helping professionals network.  Is there a Carpenters of Plumbers union.  As far as I can tell the ITSMPA is no different except there seems less undue vendor influence and commercial intent than some of the others.  By the way, each of the above mentioned associations  charge fees and why should an organization have to have tenure - that implies a closed rather than open criteria - exclusive. Where are the specific rules?  —Preceding unsigned comment added by 72.130.138.189   
The ""rules"" you are asking for are probably most relevantly WP:ELNO and WP:ELYES. However an RfC such as this one may produce a valid local consensus for interpretation of these guidelines.
Following up on the comment ""as far as I can tell the ITSMPA is no different"", a quick WP:GOOGLETEST shows ITSMPA→2,000 hits, itSMF→577,000 hits, ISACA→538,000, PMI.ORG→432,000. These numbers seem to show a distinct disparity in notability.—  
Oppose: Peer forums with over 1000 members could potentially provide information beyond what the article would contain if it was a featured article. However, from what I can tell, even the peer forums require a paid membership. The free basic membership doesn't give you any more access on the website than is available to the general public. I think that means this fails WP:ELNO #6: ""Links to sites that require payment or registration to view the relevant content, unless the site itself is the subject of the article, or the link is a convenience link to a citation."" Even if I'm reading it wrong and the free membership does give you access to training and forums, that still fails as that means it requires registration.   }}"