The OK (a.k.a. The Committee For The Advancement Of Torah) has a house organ, The Jewish Homemaker. It filed with the IRS as a separate non-profit in 2000 through 2003.
You can read a financial summary of The Jewish Homemaker's most recent filing here.
The IRS 990's follow as pdf files:
Download jewish_homemaker_2000_pdf.pdf
Download jewish_homemaker_2001_pdf.pdf