I am looking to monetize soon, so I am interested in answers here, too. :-)
A friend has recommended Social Spark to me, but I haven't tried it yet.

Social Spark has been my best income producer...both the sponsored posts and ads.

Once I attained a rank of PR3, it has been much easier to monetize.  Businesses are contacting me to advertise, my rate for sponsored posts has gone from an average of $15 to over $100!

Wow, what great information here about the Social Spark.  I had not heard of it before.  I am new at blogging going on 4 months now or so, and am grateful for this information.  I am heading over to Social Spark.......see u there. :)

Wow that is awesome Budget Diet!! I hope to get to that price soon! I am a PR 2

And ya social sparks is great along with blogvertise!! 

Kelsey, Sorry if I am hyjacking your thread! I don't mean to! 

Susie, no worries your not Highjacking anything :-) 

Having a pr ranking is something that google gives you when your blog gains in size and you are doing the right stuff. LOL not sure what everything is the right stuff but, they only update like 4 times a year. 

But, when you get a pr ranking you can use that to show sponsors or people wanting to work with you, and you can raise your paid post price or whatever cause it shows that you rank in searches and such. But, I don't know a ton about it. Just know it is good to have. 

http://www.prchecker.info/check_page_rank.php

you can check your site there for free :-) and they might explain it better then me. 

I make most of my money off of sponsored posts through Social Spark and Blogsvertise.  I offer ads and text links as well and have a few with small monthly fees. All of my advertisers have contacted me directly. I've never had any luck with ads through any of the ad platforms like Puxee or Passionfruit and really don't know how else to find additional advertisers or sponsors.

Kelsey, what affiliates are you having luck with? I've tried several and don't get far.
 

I don't get a ton of offers from Social Sparks mine come and then I go a few weeks to a month with no new offers. 

For affiliate programs my best 2 are Commision Junction and Link Share. They have tons of advertisers like Walmart, Smashbox, Sephora and such. I have good months and not so good ones :-) But overtime it seems to becoming more steadily on money! 

Thanks for the info, I've done link share but no one has ever clicked through anything so I removed them.
Have you checked out blogsvertise? When Social Spark gets slow, I normally get more out of Blogsvertise.