Sysomos, a social media monitoring and analytics firm, analyzed 600,000 fan pages on Facebook and came up with a members distribution curve. The vast bulk of fan pages have between 10 and 1,000 fans. Only 4 percent have more than 10,000 fans, and less than 1/20th of a percent have more than a million fans. It breaks down as follows:
95% of pages have more than 10 fans
65% of pages have more than 100 fans
23% of pages have more than 1,000 fans
4% of pages have more than 10,000 fans
0.76% of pages have more than 100,000 fans
0.047% of pages have more than one million fans (297 in total).
Like website promotion, setting up a fans page does not mean that you can get thousands of members instantly. You need to promote your facebook pages both online and offline unless you are really a very famous person or company.