# 32 - Another couple of gray methods + cool bonus!
"Cold" sending emails and sms: comparable with catalogs in their mailboxes. But, if they are still produced, then somehow it works, though, in all honesty, the effectiveness of this method is social media marketing was far at the beginning of the two thousandth.
Buying comments and reviews: the effect is directly proportional to the native. Read more about this method in our article about hidden marketing.
Creating a group aggregator, copying the most popular posts of the thematic platforms: this is just the perfect way for which we should scroll to the current situation and that can bring a runaway success. To get from "gray" to translate it into the category of "white" recommend the use of foreign sources and try to further optimize each material.