ecmedia - 1:35 pm on May 30, 2008 (gmt 0)
The higher your traffic the more stable your income is. Once you approach close to 2 million visitors monthly, you will see stability like that of a corporation. Having diverse content is also a big factor. If all you have on your website is info about baseball then you might see huge swings from month to month but a lifestyle website with info on personal finance, gadgets, fitness, relationships, cooking, etc. you will always have large numbers of people coming.