Sonny Ochs organizes `tribute' concerts, and every now and then, others do so as well. See her web site for a schedule. Here is review of one of them.
On September 27th Our Times Coffeehouse in Garden City NY is having a tribute to Phil at our Coffeehouse. We will be featuring Magpie and Pat Humphries as well as others. For more info you can go to www.ourtimescoffeehouse.org
If you know of any others, let me know and I'll list it here.