Terry went through 10 Easy Ways to Research Your Market before you create a product to be sure it will be something that people will purchase.

Links mentioned:

1: Alexa | http://www.Alexa.com
2: Compete | http://www.Compete.com
3: Google Trends | http://www.Google.com/trends
4: Google Adwords Keyword Tool |https://adwords.google.com/KeywordPlanner
5: ClickBank | http://www.ClickBank.com
6: Amazon | http://www.Amazon.com
7: Twitter | http://www.Twitter.com
8: Facebook | http://www.Facebook.com
9: Pinterest | http://www.Pinterest.com