Menolly,
Here's a start.

Session every Wednesday or Thursday night at "A Piece of Ireland" Newark, DE. 302.454.1900

Attend a Green Willow concert and meet people
http://www.greenwillow.org/

Attend a Brandywine Friends of Old Time Music concert and meet people http://www.brandywinefriends.org/

Attend a Brandywine Dulcimer Fellowship meeting and meet people
call Bettie Scott at 302-235 0258

Arden Coffee House
http://www.ardenclub.com/

Delware Friends of Folk
http://www.delfolk.org/