I have a few domains on sedo and I asked this question to them but it's been a few days and I haven't gotten a response. I know you can't link your domains, but can you link your portfolio? I mean http://www.sedo.com/search/searchresult.php4?language=us&showuser=YOUR_ACCOUNT_NAME That page shows a list of the domains you have parked to anyone. Can you list that link on your website or blog for example?