You can publish/share all the charts I am giving away for free on your sites to boost your traffic as long as you do not modify those charts.
If you have any questions, simply call me at +49 01515 9262644. I may not always be available to answer your call, but if you're having problems reaching me, please drop me an e-mail at marcin.nowacki@alphagain.com.
Marcin Nowacki, Käthe-Kollwitz Str. 21, 71263 Weil der Stadt, Germany
