Weekly Must Reads

Here is this week's roundup of some of our favorite marketing, e-commerce, and analytics related articles: 

1. How to Use Customer Recommendations to Grow Your Business (Entrepreneur)

2. Twitter Opens Advertising to All U.S. Users: Here's How it Works (Hubspot)

3. E-commerce Trends Point to Bright Future (Practical Ecommerce)  

4. 7 Species of Social Commerce (Mashable)

5. SumAll Links Social Media Activity with Sales Trends (ZDNet)