Sign e-mails with your desired job position for your website, for example: John Doe, CEO of Fun SIte. This will intrigue people into checking the link for your website.
Forward interesting information – stories, photos, videos, and all kinds of mails to your friends (make sure they do not mind receiving such emails). Your friends will forward these mails to their friends.
Become a member of several forums and make sure you take an active part by posting your stories or comments
Use a catchy username
Put your website link in your forum signature
Don’t overly promote your website - this will get you banned from most forums. Instead, participate in discussions by providing valuable information - this will make other users check out your profile and your website
Promote your Facebook page on your website. Answer to all posted questions. Don’t delete negative opinions, answer them calmly
Build a custom Facebook landing page and advertise your top offer. Consider running a Facebook game with rewards from your website - people will share your URL with their friends if they have a chance to win something. The awards can be in the form of various products or services, depending on your target audience