How can I advertise and market my website ?

[Fla]

a.) Make a Twitter account and interact with your consumers on a more personal level. Also, it doesn't hurt that Twitter shows up readily for SEO purposes (usually the first page) and will get you more internet real-estate.
b.) Create a Facebook page, as well, and especially, a LinkedIn. All three of these options are free and necessary.
c.) If your competition for ranking in SEO on Google is high, investing in a good AdWords campaign can bring very large amounts of traffic to your website for relevant keywords.
a.) Spending money on Facebook and LinkedIn ads is somewhat expensive ($4 CPM), and although it allows you to target specific audiences, there are most cost-effective ways to spend your money.

If you're running a global business with a decent budget, I would suggest investigating retargeting/interest based targeting. Its not as scary as it sounds, as most companies who provide this service do it anonymously. ( For example, a company that targets anonymously based on ownership signals- http://www.owneriq.com )

Companies like this will tag visitors to your site and follow them anonymously as they roam the internet to make sure that you're sending the right kind of ads.
Source(s):
http://www.owneriq.com/ownership-targeting