Pittsburgh Youth Symphony Orchestra
- Includes information about performances, auditions and membership, publications and a directory of contacts.
- http://www.pittsburghyouthsymphony.org/

Philadelphia Youth Orchestra
- Includes staff profiles, rehearsal and performance schedule and information about the ensembles and auditions.
- http://www.pyos.org/

Philadelphia Sinfonia, The
- [Pennsylvania] It is an organization of locally recruited gifted young musicians which present a concert series befitting the city of Philadelphia and her reputation for being one of America's principal cities for artistic activity.
- http://www.user1.netcarrier.com/~ps2

Youth Orchestra of Bucks County
- Five ensembles for musicians, grades 5 through 12: information for prospective members.
- http://www.yobc.org

Pocono Youth Orchestra
- Stroudsburg: String Orchestra (elementary school age) and Youth Orchestra (secondary school age). Site includes schedules, concert and membership information.
- http://www.pocono-youth-orchestra.org

Lancaster County Youth Symphony
- Youth Symphony, Wind Ensemble, and Junior Orchestra: includes membership information, concert calendar, pictures and audio.
- http://www.lcyso.org

Delaware County Youth Orchestra
- Includes concert calendar and contact information.
- http://www.dcyo.org/