Infographic, Data Visualization, Maps, Charts, Guides

Source   http://www.wordstream.com/

1. Finance & Insurance – $4.0 Billion (example keywords in this industry include: “self employed health insurance”, “cheap car insurance”, “credit cards for bad credit”)
2. Retailers & General Merchandise – $2.8 Billion (example keywords in this industry include “zumba dance dvd”, “proform treadmill”, “weber grill accessories”)
3. Travel & Tourism – $2.4 Billion (e.g. “new york hotels”, “plane tickets”, “rental car deals”)
4. Jobs & Education- $2.2 Billion (e.g. “accredited online college degrees”, “online certificate programs”, “unemployment benefits”)
5. Home & Garden- $2.1 Billion (e.g. “replacement windows cost”, “appliance repair”, “cabinet refacing”)
6. Computer & Consumer Electronics – $2.0 Billion (“ink cartridges discount”, “pc memory”, “online video conferencing software”)
7. Vehicles – $2.0 Billion (e.g “cheap hybrid cars”, “certified used cars”, “bridgestone tires”)
8. Internet & Telecommunications
   – $1. 7 Billion (“pre paid cell phones”, “domain registration”, “cable internet providers”)
9. Business & Industrial
   – $1. 6 Billion (“custom business cards”, “cheap office supplies”, “foam packing”)
10. Occasions & Gifts
    – $1. 2 Billion (“funeral flowers arrangements”, “flower delivery”, “wedding gift registry”)