All activitties sem and
SEO is for site promotion. Offpage to mention many onpage optimization and related articles. It is better understandability and better practice to refer to
SEO books to go high for sites. Search Engine Land website for updated articles. Also add ur account to participate in the
SEO twitting. Many updates in the industry will lead to know. Also to check Twitter /
SEO Search
SEO know u will find articles plentiful. If possible, try to read books like some
SEO. The art of
SEO,
SEO Bible and so on. Try to build quality website so that visitors who will benefit there.