According to Lisa Barone, there are 5 types of Twitter Influencers.
- Everyday Users have a small circle of influence but great potential
- Reporters are connected people and great communicators
- Social Butterflies are very active within their individual networks
- Trendsetters are early adopters who love to share new ideas
- Thought Leaders are the voices people listen to most
To grade your Twitter influence and find what type your are, visit Twitalyzer (http://www.twitalyzer.com)
For more information, you can read Lisa Barone’s "Five Types of Influencers on the Web".