What is this? Add your business @profile to your personal Twitter profile bio. Also get your employees to do the same. For example your bio might be:
I love traveling and spaghetti! I do business development for @company
Why should I do this? @profiles that appear in your twitter bio are clickable. Therefore anyone who checks out your profile also has the opportunity to check out your business profile too - this is traffic that you can then drive to your site.
Who else is doing this? This can be seen on many entrepreneur profiles. Hiten Sha of KISSmetrics for example, includes two of his companies and even his business partner in his Twitter profile bio.
How can I implement this? Simply include your company Twitter @profile in your bio.