If you owned a domain name, had a product or recently applied for a trademark with "Second Life" in it, you may have to change it. A week ago, Linden Lab announced a new trademark policy under the guise of the Second Life Brand Center and clarified some questions concerning the policy yesterday. Great for them! Taking care of their trademark and copyrights not only helps Linden Lab police their product (especially with competing products beginning to appear), but it helps police some other disputes concerning Second Life, including the SLART trademark dispute. I usually don’t comment on these sorts of topics, but for the sake of this discussion it is a great example of how the new trademark policy helps the community as a whole and a lesson about how to avoid being trapped by such policies.