1. Advertising Planning Tools
Google Trends http://www.google.cn/trends
Google Trends: Grasp the direction of the future and predictively plan your ad placements. It's a must-have tool for daily use or travel. Oh, there seems to be another function called Insights for Search which is quite similar to Google Trends. My foreign language isn't good, so I rarely use it.
Bidding Treasure http://www.kkeye.com/data/index.aspx
Sneak a peek at how your competitors are placing their ads and what keywords they're using. Haha, this one is pretty cool, BUT it’s a paid service. It looks quite powerful. If you're interested, you can try it out. It's not expensive anyway!
Click Volume Estimation Tool https://adwords.google.com/select/TrafficEstimatorSandbox
A dedicated Google AdWords tool that can estimate the search volume and click-throughs for keywords.
Ad Planner https://www.google.com/adplanner/
Used to understand which websites your target customers frequently visit. Again, it's in a foreign language, and even Lonmen himself can't use it well.