It is well known that Google and other search engines give preference to faster sites. There are some techniques to have faster sites, but in this article, I will talk about only one: minimizing the size of your PNG files.
Having a better SEO is a must these days. The file minimization will allow your website to load faster, and as a consequence, it will rank better in the search engines.
Currently I manage like 10 websites I have done myself. I have been working on a heavy SEO and I can be very proud that they are listed in the first page when you are googling the right words. Because of that, and a reading I did in a magazine called "The SEO handbook", I will share with you what I agree as SEO myths.