Take a look at Entrecard more of a blog networking site although it does have a directory. You will get traffic if you make an effort to visit other blogs and use the forums but the quality of the traffic is questionable.
? is there a link to your blog. also what advertising / cards are you dropping ? It does take a little while to work the system out so it works for you ( each case varies but some basics stay the same ) most important i suppose is to also look at improving your blog as well as a focused drive with the widgets and promoting the site. I have sent you a PM in relation to some work we are doing to help new blogs get promoted etc, where we only drop and support our favorites in a closed system. I use credits plus spend my own $ to bring in more credits to promote these blogs so if your serious about getting it work let me know as I am not interested in time wasters or people wanting free rides. For us it has taken us from 4+ million in alexia to now into the 500 K mark a 3.5 million improvement over several months with little to no other external advertising or links in, and I will now gun for under 100 K just using this method. The traffic yes some may be questionable (but most seems good and won't buy into that argument where there is no clear winner ) but to land it in under 100K then sets us up with a good base to then step out and plug in other advertising to cement it home and continue.
I'm on Entrecard for a few months now. Lately, I've been dropping cards quite consistently - 300 per day. It's time consuming, but it got me over 200 hits per day. Good enough a traffic for me. A bit doubtful about the quality though. Apart from the effort in dropping, ads you place on others EC blogs also plays a big part in driving traffic.