Twitter traffic

Everyone knows that the Ruby Pens rubric is in your favorite program. While everything is at home, most of all love a plastic bottle. Soon we are waiting for new series about how to make a rover, a monument to Putin and democracy in Cuba from a bottle, an old sock and toothpaste.

But in the network, at the moment the role of a plastic bottle is played by Twitter. Stumbled upon article 21 top twitter tips. Through Twi, they distribute coupons for purchases, gifts, make online support services, gather information, select a supplier, etc.

But this is all in the overseas gourmet, while Twitter is used to attract traffic to the site, using the example of two sites that I personally dealt with, Twitter gives 3-7% of traffic.
')
And your personal experience which figure tells?