I have way more then 20 Micro Niche type websites, probably around 500, but I would have to count them.
Answers to your questions.
1) Yes a lot of them are in the number 1 position and even more on the first page.
2) On average, from just the micro niche websites I make about $80 - $250 per day, depending on the day. As for the avg per click, it changes quite a bit. I would say between .25 and 2.00.
3) To get all of the websites up, it took me about 3 months. I outsourced some of the work, and also have a small team that I work with. As for getting them to the top in Google, that depends on the backlinking strategy that I followed.
I have about every tool that is available out there for building backlinks, except xrumer (simply because I do not have the time to learn it and I can outsource it for really cheap).
One of my favorite and what I have found to be the quickest way to move a website up the rankings when it is micro niche (or not micro for that matter) is link pushing. Basstrackerboats offers a great service on here, or if you don't have the money to invest you can do some of it yourself.
4) My monthly traffic changes every month. Some of the niches that I have are not as popular as they were when I got the website up. An example would be something that came out a while ago and has lost popularity because something else has came out and replaced the product.
On average each one of my micro niche websites that is on the first page gets between 20 and 150 visits per day.
- One thing with building micro niche websites that you should really think about is that you can build one - 10 page website that can easily rank for a lot of different keyword terms. The easiest way that I think to do this is to build each page as it's very own website when you are optimizing it.
So if you target a micro niche for "King sized sheets" make another page for "Queen sized sheets" and when you build this page, optimize it only for "queen sized sheets". Build backlinks to that page using different anchor text that have to do with queen sized sheets.
I know that is not the best example, but you get what I mean.
Hope that helps to answer some of your questions.
On a closing note - If I were to just be starting this again, I would suggest outsourcing as much as possible. If you outsource the keyword research (probably the most time consuming part of micro niche websites) and the article writing you will be able to put more time into building backlinks. Or outsource the article writing and backlinks and do the keyword research yourself. You will find that it does not take very long at all to put up 20 websites.