Flash! I just found a wonderful filing option for not-for-profits who have annual income of under $50,000 per year. It is a post-card electronic filing. It literally takes 5 minutes. The IRS form 990N is a quick, easy form that meets all filing requirements. Here is the link to the IRS website that describes it. I filed for Biomeds Without Borders in less than 5 minutes.
I hope this helps you out.