| ARRL American Relay League | Allegheny Highlands Repeater Association |
| GMRS The radio service | Repeater Builder Technical Information by W3KKC |
| WPRC Western Pennsylvania Repeater Council | Satellite Tracking Real time tracking on line |
| Ham Radio On Line Amateur radio Online magazine | W5WWW Ron's World |
| Buckmaster Callbook | EPA QRP Eastern Pa QRP Club |
| Foothill's Amateur Radio Club | W9SAR Wide area repeater reference page |
| Chestnut Ridge Amateur Radio Club | W3FF Another Portable QRP Antenna |
| Southhill's Amateur Radio Club | N3KZ University of Pennsylvania Repeater System |
| QSL Net E-mail reflector plus other information | Eham Amateur Radio On Line |
| Amateur Reference many links etc. from the UK | Ray Vaughn Repeater and other information |
| AC6V HomeBrew Antennas | BHoA Bicycle Hams of America |
| HamCram Online test questions UpGrade now | W4RT Electronics Amateur Parts and accessories |
| DATVS Detriot Amateur Television Society | IRLP Internet Radio Linking Project |
| Clear Lake Amateur Radio Club | MABEL Michigan Area Balloon Experiment |
| WorldWide Utility Club | Bob Colyards Utlity Page |
| MilSatCom Millitary Satellite Info | Scramble Military Information |
| MilAir Military Air Information |