search-engine-marketing

What are the differences between SEO and SEM ?

Could you anyone tell me what is the main difference between SEO and SEM? ...

Best books for search engine optimization or search engine marketing?

Thanks in advance! duplicate of http://stackoverflow.com/questions/252437/looking-for-an-seo-book http://stackoverflow.com/questions/1321097/seo-where-do-i-start ...

Search engine optimization for text with different colors

We're trying to do SEO on our company website. Our company logo is just text (in image form), but has two colors in it. Our company name appears a lot in our website text/copy. For example, the sentence, This is our company name: COMPANY. is coded as, This is our company name: <span class="logo_black">COMP</span><span class="logo_red...

SEM/SEO tasks doubts

Hello, Actually i think that i have an strong knowledge of SEO, but im having some doubts about the following: I will have to increase the position in Google of certain product pages of a company in the next months. I supposed that not only will be sufficient the following tasks: Improve usability of those pages. Change the pages ti...