Once you've created your professional blog or other site and posted it online, there is plenty left to do, even if you've done a good job of Search Engine Optimization.
That's because the material on your blog may take time to develop an audience and a conventional Website will soon look stale to search engines without additional inbound links from other popular sites and additional traffic flowing through those links.
To promote your blog or Website, it's a good idea to create profiles on some of the more popular and active social Websites–Facebook, LinkedIn, Flickr–as well as on some of the more popular social bookmarking sites–Digg, del.icio.us, StumbleUpon.
Once you've created your profiles, don't simply promote yourself with repeated links back to your site.
Instead, contribute to the community by leaving helpful links to other sites related to your topic, commenting on posts from other members and occasionally posting photos of events or products. Soon, if you're lucky, you'll notice a slow but steady trickle of people visiting your profiles to find out more about you.
You can also comment on popular blogs related to your topic. If your comments are thoughtful, helpful, contribute to the overall discussion related to the latest post and are not overly promotional, visitors to the blog may follow the link back to your site and a blogger may be inclined to link to your site in a future post.