Marketing my website – Advice sought

Hi Folks,
I've been running my model shop directory (modelshopsin.com) for about 12 months now and it's slowly growing (in traffic).
I've so far used the following methods to market the site:

Contacting shop owners to perform interviews about their business, this works mutually as they get return publicity about their business.
Contacting relevant manufacturers to get review copies of their products.
Facebook & Twitter marketing (pages on each).

Some additional ideas…
Marketing my website – Advice sought

See original post by philnet