I hear lot of people talking about online business and jobs (and offcourse they are having it), I wonder is there any difference between online business and freelancing. do they belong from the same?

Eria, I think freelancing is a part of the big world of online business. Online business can range from owning a professional webpage/ product to the part-time jobs like ad-typing, surveys completion, email reading, etc etc. Freelancing is a part of online business where you use the internet to advertise your availability for a particular job. Infact, freelancing online is no way different from the freelancing offline. Online, you get access to the entire world; offline, you are restricted to a certain zone. Time is another factor. Things happen faster online than offline. I guess I can put it this way: Online business is the father (or mother??). Freelancing is one of the many children that online business bears :-)

So, is there any criteria for choosing the way of online business and freelancing online or offline? What type of jobs you can categorize in offline and online freelancing?

I think it's safe to say that if you can perform a task that someone will pay you to do and you aren't considered their employee, it's freelancing. I've seen folks doing everything from resumes to website design to research papers to server maintainence. And online, it's a wide open opportunity.

As Rowan put it right, online freelancing is an open opportunity. It can vary depending on your interests- photography, typing, webpage designing, transcription, anything that you are competent in. I can't think of offline and online freelancing as separate entities. It all centres around freelancing - being your own boss and working at your desired pace, and doing what you love.

that's really nice boys, ok one last thing, fromn where I can find freelancing projects like data entry, article writing or sort of home at home jobs during my free hours?

Here are a few to get you started. You need to register to get the info. Some may require a fee to start. Also check out Jayadev's post on freelancing data conversion.

getafreelancer.com
elance.com
freelance.com
pcatworkhome.in

All the best and keep us posted if you find a good site

seems great, I normally go to scriptlance, getacoder, and hireacoder for freelancing jobs. better check for these too.

Erie, are these sites you mentioned free to register or do they have membership charge? I am vexed with getting into sites only to find you have to pay before getting their information.

the best thing about them is they are totally free and only charge when you get project. (about 2% to 5%). so you can directly signup their and start bidding.
here are the links

http://www.getafreelancer.com
http://www.scriptlance.com/
http://www.hireacoder.com