FTC guidelines mandate that all websites/blogs notify users if there are promotional ads/affiliate programs or products recommended on the site and compensating the owner of the website.
Indeed, HelpingHandSEO.com does provide links on this website which compensate the owner, Vitaliy Gershfeld is a purchase is made through the said link. Not all links on HelpingHandSEO.com are affiliate links, they may lead to other, free content free websites.
If you have any questions regarding the affiliate promotions on this website, please feel free to ask.