Actually Google update the site after checking the worth of the site mostly it cannot change but if good link are take from your site then it not surprised thing well PR 3 is good rank.
Actually web hosting sites have a great competition so totally It depends on how you promote your new site.
Specially newly developed site are not known by many people you should aware the people through advertising and use the SEO for making your site worthy that people visit more and ore on...
Every business plan consist on the type of the business but the for starting any kind of business you should need all the national and international information about it and you have the ability of upgrading yourself with info about business.
According to my perception you shoul learn first HTML then go for xTML because after HTML you should easy to understand the XTML and its not the full and final thing about web development it is the basis you know is a wide field and if you concern some book then go on internet and you will...