Marc entertains and educates diverse audiences with programs about branding, communication, print buying, graphic arts and environmental leadership. Recent appearances include:
- Rotary, RYLA Youth Leadership Conference (invited speaker 2008, 2009, 2010, 2011 and requested for 2012)
- PACAH, Keynote Annual Conference 2011
- George H. Hewlett High School (1000 students), rededication of outdoor memorial garden for former alumni lost 9/11-2001.
- PASAE Educational Programs,
- PACVB Spring conference graphic design and print buying program.
- CCAP, Branding Program & green panel
- Public Relations Society-Harrisburg
- York County Chamber
- Meeting Professionals International
- Green Panel-Central Penn College