doesfollow.com will quickly tell you if one person follows another on Twitter. saves you from paging for the answer. We also have a Twitter list membership check now as well.
Great to see simple applications like this pick up where the Twitter site falls down - the followers/listed pages with "More" at the bottom is completely unusable for 99% of folks I know. Note that they have added a great new feature - Twitter list membership! Just go to http://lists.doesfollow.com