Seeing Facebook founder Mark Zuckerberg interviewed on 60 Minutes a few months ago signified that the social networking Website has officially hit the mainstream. Millions of people were already members of the Website, but the demographic of 60 Minutes watchers wouldn't typically be confused with that of Facebook and MySpace users. But a growing number of business people do understand how these Websites are being used to have conversations with people for the purpose of knowledge sharing, opinion swapping, and cultivating professional relationships. Most people have heard of the very popular social Websites like Facebook, MySpace, YouTube, and others. They present opportunities to connect with other like-minded people to explore possible business ventures. And the more active you are on the Websites, the more value can be derived. But there are other Websites, and acts, you may want to participate in to help boost your return on the time you invest building your credibility on the Web. Twittering at Twitter.com It's taking me a while to appreciate the value of Twitter, a Website that lets you send short text messages to people who subscribe to receive your "tweets." I know what you're thinking: Why would anyone want to send (or receive) short status updates? Well I found out that sending short one-sentence messages quickly gets the word out, and saves me from having to craft longer, more time-consuming e-mail messages. Plus, you can send them from your mobile devices, and your Twitter messages easily integrate with Facebook and other Websites. So they can reach a pretty wide group of people, with minimal effort. In fact, some people are quicker to respond to "tweets" than to phone calls and e-mails. Stumbling at StumbleUpon.com StumbleUpon is a Website that lets you easily share with your network things you come across on the Web. If you like a blog post, you can use the StumbleUpon toolbar to mark it as "stumbled." You can tag it and comment on it, but the key is that you're sharing good information with those in your network, and they're sharing it with you. This is incredibly helpful because the people you trust are sifting through tons of content and marking the good stuff, saving you the time and effort. And they are also "stumbling" on your content which could drive serious traffic and create "buzz" for you. Pulsing at Plaxo.com A while back, I used to get update messages from Plaxo members who used the service to keep track of their contacts. I was not a fan of Plaxo at the time, but I have since joined them in their reincarnation as a social network — Plaxo Pulse. What I like about Pulse is that it is a network of professional people, similar to the more popular LinkedIn. But Pulse has included many of the features you typically find in the more traditional social Websites. And when I write a blog post, I have it set up in Pulse to include a link to the post from my profile. The same goes for any twittering I do, or Facebook items I post. It's a great way to make any content I create available to the people in my Pulse network right on the spot. Mixxing at Mixx.com If you're familiar with Websites like Digg and Reddit, you'll probably like Mixx. It allows you to post links to content you like and have the community vote on how good it is. What I like about Mixx is that the content seems to be more news and business oriented, whereas Digg is frequented by a more technical audience. Mixx is also attempting to make it easier to get to better, more professional content. Mixx and the other aforementioned Websites can send tons of traffic to your Website if your content hits the homepage, which causes people to try to "game" the system. But Mixx is trying new ways to keep this kind of activity at bay, which should make it even more impressive if your content gets "mixed." In fact, you can become a "super mixer," which gives users who've earned that designation the ability to streamline the content-promotion process. This could be another way of building your rep on the Web. So if you're looking for ways to more effectively and productively leverage the Web, you may want to do a little twittering, stumbling, pulsing, and mixxing. Brent Leary's column on business technology appears weekly at BlackEnterprise.com. He is co-founder and partner of CRM Essentials, an Atlanta based consulting/advisory firm. His blog can be found at www.brentleary.com.