In talking to someone who works for a social media company, he passed along a little promotional tip that's as easy as changing your e-mail signature.
Just think about all the e-mails you send and receive each day. Maybe it's a lot, maybe it's not that many. Either way, your e-mail communication will probably increase over the next few years, and you'll probably communicate with your customers via e-mail more and more.
At any rate, consider adding your web site to your e-mail signature. Below, I've used myself as an example of what it could look like:
United Hardware Distributing
That's a pretty basic e-mail signature, but you could do something similar using your web site. It's another great way to advertise your web site. I'll continue to share more of these simple ideas to promote your web site.