Sorce with some additional info: http://www.guerrillahub.com/rank-higher-g2-crowd/
What affects the ranking?
The number of reviews — this one is obvious.
Score. In this case, it affects ranking way too much. It’s better to have one 5-star review than two 5-star and one 4-star review. So make...
From this blog: http://www.guerrillahub.com there few decent articles on it I even subbed to it's RSS feed after reading G2Crowd guide.
Register accounts in advance.
Create a list of platforms you plan to work with and register multiple accounts on each platform.
Create fake social media...