Find new traffic sources in your niche. Whatever sites you currently advertise on, make sure you also hit all of that site's competitors. Don't miss the small sites. Back links every where. Maybe check out www.onlywire.com? Good luck
Based on the replies i think you have a fair idea that your blog is earning more then what most bloggers are earning, you just need to hook on to a good enough niche and i'm quite certain of the fact that you'll be earning more and more =]
I think $20-30 is a good amount to earn per day with a single blog. However, if you would like to increase this amount to $100 a day, you need to add more fresh content to your blog and you need a lot more traffic. This will require more aggressive SEO work from your end. Work on ways to build links and establish your blog as an authority in your niche. This will take you near to your goal.
My Page Impresion Is 65 Or 57 A Day But My Earning Is 0.00 What Can I Do Plz Help And My Google Ads Is Displaying Only Text No Advertise Plz Help
$100 per day a blog is alot to me and to 3rd world countries especially. if i can maintain $100 per day..i would probably quit my job...lol
If you can earn $20-30 per day then there's no stopping you from earning $100 a day with adsense! Goodluck to ya mate!