Google Webmaster Tools are free tools provided by Google which help to understand what is going on with your website in terms of search engine optimisation. This way you make decisions based off of data instead of going in blindly.
CSS3 introduced media queries into the web development world. Media queries are the foundation for responsive design. They let you create layouts specific for screen sizes such as tablets and smartphones. This article provides you with a brief overview of media queries with the basic syntax for common screen sizes.
Responsive web design is more important than ever before. With the use of smartphones and tablets exploding, it has never been more critical for websites to look just as good on small screens as they do on large ones. This article provides some tips you can use to make your web design more responsive to the needs of mobile users.
Here is a list of 8 excellent and free search engine optimisation websites that can help you accomplish various SEO tasks, e.g. backlink investigation, keyword research, etc... When used together these tools are an incredibly powerful resource in any SEO strategy.