On Saturday, March 24 and Sunday, March 25 I will be at New England Bonsai in Bellingham, MA. You can see a free demo, tree critiques and some workshops are offerd. Some places are still avialable.
http://www.nebonsai.com/calendar.html
On Tuesday, March 27 there will be workshops at Nature's Way Nursery in Harrisburg, PA. A couple of places still available. I will be there until Friday, March 30. Private sessions can be arranged. Call Jim Doyle at Nature's Way Nursery.
http://www.natureswaybonsai.com/