I run a technology and design website that is currently receiving around 1.4 million pageviews and 500k unique visitors a month.
The site is currently making me around $3000-$4000 a month from all the ad networks that I'm currently working with. There are 6 banner ads on the site.
I'm looking to make more money from the site and find better ad networks, but finding good ad networks is tough.
I want to ultimately remove some of the banner ads too but make more money.
UPDATE MORE INFO
So sorry guys, I completely forgot to actually say what type of site it is.
The site is mainly a blog/news. So it's updated 2-10 times everyday with new articles on all sorts of major tech news, design news, new apps, app compilations....etc.
So there are no products actually for sale on the site itself, it's just good content.
Any advice on how to sell ad space myself/directly to clients? I've never had experience in this and wouldn't even know where to start.
I do have an email form which is building, slowly. Currently on 1k subscribers.
I also have a Twitter account with nearly 10k followers, and a Facebook fan page with nearly 20k likes.
I got the site banned from Adsense, because I was one of those dumb guys who thought Google wouldn't notice if I clicked on the ads.