The IRS yesterday [Wednesday, June 8] announced (IR-2011-63) that 275,000 organizations have automatically lost their tax-exempt status for failure to file Form 990s for three consecutive years, and announced (Announcement 2011-35) the publication of the list of those organizations on its website. The IRS also issued guidance (Rev. Proc. 2011-33, Notice 2001-43, Notice 2001-44) on how organizations can apply for reinstatement of their tax-exempt status.
Review the database of the 275,000 organizations here just to make sure your lodge or appendant group is not on it. If you search for "Masonic", there are 373 groups listed.
Sort of like checking the obituary page to make sure nothing happened to you in the night.