I've never been to those levels but keep experimenting with advertising and focus on quality backlinks etc.
Sometimes simple steps like choosing another banner size can lead to an increase in CTR. Also there are adsense optimized website/blog themes targeted for high CTR's.
All those who are earning $25/day are on the way to earning $100/day. I have been there. All you need to do is SEO and update your site regularly and given time, you will get there. Once you break the $100/day, you will see $200/day within 6 months provided you do not sit back and relax. Congrats!
It's all about testing your ads placement. Use the channel to track all testing. You need to explore different colors texts, ads sizes, etc and different locations. Once you have found the best placement, then it is time to reap the profits with adsense.
well it would be easier to join some affiliate programs and sell something related to your site or some PPA ads "trials, sign-ups" etc
If you want to use the revenue from current Google Absence then do the AB testing. And create various channel to place in various part of the site and check how those performs and then you can get a comparison data to understand which is better and then you can decide. Yes position, color type of ads all matters so try to experiment. Yes, keep good seo work and also if like then use other type of ads and also can use affiliate links to get some extra revenue.
Wow, $25 is great. Also study your stats to learn what types of content pages are bringing you the most money - i.e. PPCs on some finance related pages might bring in more than other page topics.
Try to optimize the ads. Maybe change a few colors, change between text and image ads, and maybe even change the location of some of the ads and look at the conversion rates.
25/day is great income as my experience. My CTR also less than 1 i want to increase it. still testing
that's no such thing call "standard CTR" However, if you are talking about forum, sure it has very low CTR (hardly found any big forum can get 1% CTR)
Try to approve one or all of these... 1. Traffic, 2. CTR ( on existing traffic. by placement and color optimization.) 3. CPC ( by adsense placement optimiation,