I have a technology related blog that averages 500 unique visitors per day. However adsense doesn't brings even $1 a day as visitors are aware about adsense and all and they never click inspite of good adsense placement. What other good options are available to make money from tech blogs except selling links ?
How about selling products? Though ill suggest you to work more on traffic. Revenue will definitely increase with an increase in traffic.
if the visitors are from search engines, then you should expect a lot more, i guess your ads are not optimized! you can also try knotera, it's a good alternative when adsense don't work!
if you have loyal set of visitrs who read your blog and they are by now familiar with adsense, try to suplement your adsense income with other programs like Kontera and Chitika. it will be something new and CTR will go up. so with adsense, kontera, and chitika running on the same site, youu will have more than what you are having for adnsense