Resource Submission Approval

Was just wondering how long it normally takes for a resource to be approved on the site. I submitted one about an excellent shader book well over a month ago and it languishes still in my profile as 'Unapproved resource'.

Does it just take awhile? Has it gotten lost in queue somewhere? Did I enter the infomation incorrectly? Did space aliens beam the approval queue into the orbit of Saturn in late December?

Enquiring minds want to know. ;)

Thanks in advance,

J.