TweetRoll displays your Twitter details and the avatars of some of your friends, together with the ability to monitise your Twitter stream.
Just add this line to your sidebar template:
<?php tweetroll('<username>'); ?> where <username> is your Twitter username
Just head down to the customisation page. Any changes you make there will be reflected by the widget on your blog.
No. We've designed the widget so that we can use API calls that don't require you to authenticate against their service. So if your Twitter account gets hacked, you don't need to worry that it was us.
Just sign up for Sponsored Tweets. Once you've done this for the Twitter account you're using for TweetRoll, the widget will automatically invite users to sponsor your Twitter feed.