SEO trends & search engine updates

Here’s a timeline of some of the key updates of 2011:

1. Google Panda 1.0 update 
2. Meet the +1 button
3. Panda goes global
4. Panda 2.1
5. What is Schema?
6. Panda goes global again
7. Google guidance on building high-quality sites
8. Panda 2.5
9. Panda Flux
10. Google Freshness update
11. Google launches SSL search to make search more profitable for them secure for their users
12. Panda 3.1
13. Google imitates transparency with a second installment of their search quality highlights