Sumolabs

Twitter lists are all the rage. However, Michael Gray does a great job of summarizing the situations where Twitter lists could be a bad thing.

So what are some takeaways:

• Monitor what lists you are on regularly. If something bad pops up, take steps to correct it before it’s too late.
• If you see this being abused, let a search engine representative know. Don’t expect them to take it down, but the sooner they see it being abused the sooner they will work to combat it.
• If you run a UGC site, be on the lookout for how people can abuse your system. The last thing you want is to end up with a  squidoo spam problem and have the search engines take action against you.