Share your favorite sites on the Web with potential clients and business partners by commenting on, uploading and ranking different newsworthy articles. You can also create a member profile that directs traffic back to your company’s Web site.
Reddit: Upload stories and articles on reddit to drive traffic to your site or blog. Submit items often so that you’ll gain a more loyal following and increase your presence on the site.
Digg: Visitors can submit and browse articles in categories like technology, business, entertainment, sports and more.
Del.icio.us: Social bookmark your way to better business with sites like del.icio.us, which invite users to organize and publicize interesting items through tagging and networking.
StumbleUpon: open your online presence up to a whole new audience just by adding the StumbleUpon toolbar to your browser and “channel surf[ing] the Web. You’ll “connect with friends and share your discoveries,” as well as “meet people that have similar interests.”
Ning: After hanging around the same social networks for a while, you may feel inspired to create your own, where you can bring together clients, vendors, customers and co-workers. Ning lets users design free social networks that they can share with anyone.
Squidoo: According to Squidoo,everyone’s an expert on something. Share your industry’s secrets by answering questions and designing a profile page to help other members.
WikiHow: Create a how-to guide or tutorial on wikiHow to share your company’s services with the public for free.
YouTube: From the fashion industry to Capitol Hill, everyone has a video floating around on YouTube. Shoot a behind-the-scenes video from your company’s latest commercial or event to give customers and clients an idea of what you do each day.