I think I know the answer to this question, but I'm going to ask for advise anyway. I didn't even think about this when I purchased the domain years ago. I've owned a domain for years. I was planning (and may still) create a training on how to use Twitter. The domain name is stepbysteptwitter.com I have it listed on my own site redfoxdomains.com - but when I listed on Sedo they wouldn't list it because of trademark issues. Is there any value in this domain or do I just let it expire?