7 localized Wikipedia's with the least amount of articles

1. Herero - 0 articles
2. Kanuri - 1 article
3. Muscogee - 2 articles
4. Miri Motu - 3 articles
5. Kuanyama - 5 articles
6. Afar - 6 articles
7. Marshallese - 10 articles

7 underground station stops on the way to work (new office edition)

1. Baker Street
2. Great Portland Street
3. Euston Square
4. King's Cross
5. Farringdon
6. Barbican
7. Moorgate

7 medicinal plants

1. Pokeweed - Tonsilitis
2. Ginger - Ease nausea from chemotherapy
3. Bergamot Orange - Malaria
4. Balkan Foxglove - Cardiac Arrhythmia
5. Pepermint - Irritable Bowel Syndrome
6. Meadowsweet - Ulcers
7. Opium Poppy - Pain relief

7 cellists

1. Eicca Toppinen
2. David Soyer
3. Frank Miller
4. Gretta Cohn
5. Julian Lloyd Webber
6. Yo-Yo Ma
7. Truls Mørk

7 answers we got right in this week's University Challenge

1. Ice Hockey
2. Stargate
3. Sun
4. Mona Lisa
5. Clipper
6. Search
7. Go

7 google acquisitions and how what they used them for

1. Pyra Labs - Blogger
2. Klatix - iGoogle
3. Urchin Software Corp - Google Analytics
4. Upstartle - Google Docs
5. GrandCentral - Google Voice
6. Omnisio - YouTube
7. PlinkArt - Google Goggles