EJ

1. Earth to Jupiter
2. Earvin Johnson Jr. (baskball player)
3. East Jefferson
4. East Juniata
5. Economic Journal
6. Ecotourism Japan
7. Eddie James (crossword setter for Private Eye Magazine)
8. Edgerrin James (NFL player)
9. Edited by JMW
10. Edward Jones (Investing Company; USA, Canada, UK)
11. Eject (assembly language ASM51 assembler control)
12. Electric Jet (USAF nickname for the F-16 Fighting Falcon)
13. Electronic Jamming
14. Electronic Jockey
15. Electronic Journalism (NBC early 70's term describing Minicams; usually called ENG now)
16. Ellsworth J
17. Elton John (musician)
18. Email Jorge
19. Emerald Jungle (Everquest)
20. Empresa Júnior (Junior Enterprise, Brazil)
21. English Japanese
22. Environmental Justice (EPA)
23. Equipment Jackets
24. Escort Jammer
25. Euro-Japan
26. Evelyn Jacks
27. Exajoule (10^18 Joules)
28. Expansion Joint (general construction)
29. Expendable Jammer
30. External Jugular Vein