Experience in making money by advertising on small sites

Most of my website friends are for the purpose of making money. I have been doing a website for a year since last year. I would like to summarize my experience in advertising on small sites:
1. The website was put into operation for about three months, with no more than 300 IP addresses, and did not think of ads from the alliance. Later, due to the constant indexing of search engines, with more than 1000 IP addresses and experience, you don't need much effort on the website. Therefore, you need to find some alliances.
2. It's hard to find a good alliance. I 've added more than 20 in my favorites and tried a few. Haha, everyone laughed! It is impossible to receive money! I spent more than 5 yuan in revenue from the alliance for more than sites in a month, so I withdrew all of them. What did I do? Haha, they are all famous!
3. Start BAIDU and GOOGLE: remove all other alliances, add BAIDU and GOOGLE, and put BAIDU promotion and google ad together, one day, GOOGLE wrote:
When reviewing your account, we noticed that the web page of The **. ** website where you are displaying Google ads contains other content-related or text ads.
If other advertisements contained on the webpage constitute a competitive relationship with Google ads, the Google AdSense plan policy does not allow Google ads to be displayed on the webpage. This includes all text ads and content-related ads, such as the ads your website has made for [ad customers who publish other content-related ads/text ads. We allow links with a limited number of characters. However, we cannot display text ads that directly mimic Google ads, nor text ads that may be confused with Google ads or attempt to associate with Google ads.
To comply with our policies, please delete Google ads or competitive ads from all webpages of your website.
If you have other questions, visit our AdSense support page https://www.google.com/support/adsense. If you cannot find the answer to your question on our website, please reply to this email.
Google AdSense team

Hum! Do not welcome me? The majority of GGAD is removed and only BAIDU is retained.
4. First revenue: By accident, a website administrator contacted me to join the alliance. I felt that the website was good and I did it. It promoted their website, not the advertising alliance, I haven't looked at it for a few days. I opened it and looked at it. Haha, the revenue is over 100! The analysis turns out to be like this: they were originally assessed and clicked, but the data is displayed! Haha, I don't have enough money. It's true: I informed them about the management and told them about the situation, but I finally paid for it and thanked me very much. I feel very good: revenue is not the first!
5. BAIdu's income: With the increase of IP addresses, the income from BAIdu has also reached the payment level: 100 RMB/day. Haha, it has made about three months of income. It is worth celebrating.
6. The first monthly subscription advertisement is still outdated, and the IP address reaches 1000. Of course, the cost is very low: 50/month, once, pre-paid.