Philadelphia Area PDA Users Group
- Meetings, product reviews, links and contact.
- http://www.philapug.com/

Philadelphia Area Java User's Group
- Includes meeting history, directions, contact information, and resource collection.
- http://www.phillyjug.org/

Philadelphia Area Computer Society
- Providing education and communication among computer users in the Greater Philadelphia area. Newsletter, meetings, links and contact information.
- http://www.pacsnet.org/

Lancaster Microcomputer Users Group
- Meetings, membership, photos, events, newsletter and contact details.
- http://www.lmug.org/

Delaware Valley Computer Users Group
- Calendar, seminars, membership and contact details.
- http://www.dvcug.org/

Computer Users of Erie
- Focusing primarily on the PC, Mac and Linux platforms with a wide range of members. Meeting, newsletter and library details.
- http://www.cuerie.com/