Add a list on Twitter
Use the Twitter list facility to easily view tweets regarding a certain topic. Create a list for the art galleries you are interested in, a group of friends or perhaps a sports team. You can create your own lists or subscribe to those created by others. Viewing a list timeline will show you a stream of Tweets from only the users on that list. You can also make them private for viewing just by yourself.
If you are following another profile, looking at their lists is a great way to find others to follow in a particular area, perhaps in the same line of business.