some very important sites.......

These are some very important sites which you can not ignore if you are trying to promote your web page or a blog just reap the benefits of these sites:
http://hubpages.com/
http://www.squidoo.com/
http://www.flickr.com/
http://www.youtube.com/
http://ezinearticles.com/
http://wordpress.com/
http://www.wikipedia.org/
http://twitter.com/
http://www.facebook.com/
http://www.articlesbase.com/
http://www.dmoz.org/
http://www.sooperarticles.com/
http://www.linkedin.com/
http://www.myspace.com/
http://www.infobarrel.com/
and more I will discuss later...

some important steps to promote your site and blog

You have created a blog or a website and  you are planning to promote(seo) your blog and the site and you are beginner and don't know much about it than don't worry there are tips for you , just follow these steps:
Submit your site to the social book marking sites like http://www.facebook.com/ , http://www.myspace.com/ , http://www.stumbleupon.com/ , http://www.delicious.com/ , http://www.reddit.com/ and believe me you will get  traffic and worldwide popularity for your site.
There are so many sites where you can submit your site for the good promotion of your site and blog, but keep remember that if the sites are do follow then you are likely to get good results for your site promotion, because google give priority to do follow sites and it will index your site if it has been submitted in a do follow sites. I will provide a good list of the do follow social bookmarking sites later in this blog as today I don't have much time.

How can we improve page rank of website

To increase page rank of the website we should increase the no of back links to our site.Increase the no of quality back links for your sites.Put good content in your websites but make sure do not put the contents copied from somewhere else.Because Google does not give good response to such sites which put copied contents on their sites.
For more info see..http://www.googleguide.com/improving_pagerank.html