SEO is actually a subject where you always have to be updated and you will find out new updates about the search engines and will act accordingly. Today I will share with you some of the reliable site. Because here work world-renowned SEO specialist. Let's start our important journey.
The first and most important guideline you get from google's so you may want to visit: http://www.google.com/webmasters/ . After visiting this site, you can visit Webmaster Resources option. From here you can see Guideline, Help, Blog, YouTube. Besides you can follow Google webmaster guideline that's always true guideline for your website.
Secondly you can see Bing's Webmaster Blog.
You can see Google's Matt Cutts's Blog and youtube channel.
You can also follow most popular and reliable seomoz website. Here you also find new google update news and SEO tricks.
You can also follow http://www.seobook.com/ website. Here you find some beautiful beginner label tutorial.
http://outspokenmedia.com/blog - The article text quality is very good. Here you can pick up tricks about an article written.
http://linkspiel.com/ - If you just want to learn link building, you can see this website.
http://www.kaushik.net/avinash -If you want to know about Web Analytics, you can see.
Important: We are also trying to publish recent news.