real time operating system is the technique of manage the various process according to priority of the processes.
its interesting but how much safe it is in order to tracked by the another persons. i means which are working for the facebook security.
you can use JAVA and ASP.NET to make a website with high number of functionlities in the website. and these are secure too.
to increase the traffic on the website many techniques are there as profile linking, blog commenting, blog posting, forum posting is another...
if you want to learn HTML like mark up lanuage then you can take help from w3school.com.
and you must start with the basic information of...
Separate names with a comma.