Here is the list of Avoidable SEO Activities in 2014, these may harm Website/Blog. 1.Hiding content in the webpage : Not Hide your Content and Links in your Webpage. As google take it very seriously. 2.Keyword Stuffing in Meta tags. 3.Keyword stuffing in content : As many Bloggers and SEO master will say you to keep it 4-5%, But No It should be 1.25-2 % Ideal 4.Misusing "H1" tags Previously Bloggers change their H2 and H3 tags into H1 tags for getting Noticed by Search Engine. Avoid This. 5.Avoid Adding Doorway Pages : These pages Added solely for redirecting your specific page at Landing page. It is consider as SPAM No 4 in Google Rule book. 6.Avoid Bulk Link Buying and Selling. 7.Creating Too many links in sort span of time. 8.Don't change your Tags frequently for experiment purpose. 9.Too many ERROR 404 Pages. 10.Avoid too many home pages. like yourwebsite.com and yourwebsite.com/index.html 11.Wrong use of anchor text. Watch the Google Webmasters video below: What should we expect in the next few months in terms of SEO for Google?