Anyone who has waited in line at a club (Or even seen a movie with someone waiting in line at a club) will tell you, about the importance of being "On the List." For some reason, being recognized amongst the masses as someone who must be included among the elite allowed to participate in whatever event merits such a line out the door. While including your clients and prospects on an VIP event list is probably not the most applicable concept to modern marketing strategy, listing on twitter is a super simple way to get noticed, with out being pushy or asking for anything of your prospects.
Similar to the groups feature on facebook, twitter lists allows you to categorize those you are following (family members, or personal friends, for example). The genius of the list feature however, is that it is not a static collection of usernames, but it constantly updates tweets and activity from listed users. Therefore, a list is a valuable tool not only compiling noteworthy "tweeters" but it also is a place to get a snapshot of what those users are saying by viewing said list.
So how is this applicable to getting YOU and your message noticed on twitter? All it takes is a little strategy. Going back to the metaphor of the VIP list, you want your lists to flatter those included. For example, a chef or restaurant looking to network on twitter could make a list "30 best restaurants in the County." Now all of the restaurants included have been notified, and have seen seen the page of the user that listed them... make sense? Start simple at first. Make a list of Clients (give it a more appealing title, using the chef example, favorite taster's, you get the idea ), Co-workers, and those you want to know (title this group something flattering- favorite places, top chefs, elite in the field, etc) and see how quickly you catch on!
Now... to the back of the line. I don't see your name here.