I was thinking whether entrecard is a good thing or not...and whether it's traffic is useful. I think it is not so bad, 'cause you can find there not just stupid clickers, but also people who can be interested in your site. At least I have found some nice places to stay But entrecard is a time-consuming place, good for beginner though. You can not just get basic traffic but look at others work, design, techniques etc. I would call EntreCard a kindergarten for webmaster