- 55097 800x600 communication, blue background, scheme
- 12845 800x600 polar bears, communication, animals
- 105255 800x600 galaxy cluster, gravity, communication
- 31724 800x600 computer code, screen, communication
- 11490 800x600 penguins, three, communication
- 6489 800x600 earth, planet, communication
- 18171 800x600 person, schemes, plexus