even I was curious to know about this.
and I would like to know that who might be interested in buying accounts and where can I find people to sell account.
There are plenty of people buying and selling them over in the Digital Goods section. One guy is wanting to buy accounts here:
https://bitcointalk.org/index.php?topic=1068000.0;topicseenPeople wont buy low-level accounts like yours though so you'll need to achieve a higher rank.