You can make money online Blogging.

Blogging is one of the best ways to start online buisnes. It costs almost nothing. There is a few ways of make a blog - you can use free sites like Blogger which host your blog. It's more easy and cheap but you doesn't have
this freedom. (My blog is hosted by Blogger, you can see) Other way is to write your blog on your own with your domain name. It cost a few dollars to get domain and find host, but you have all the freedom. If you want
to make seriosly money from your blog, you must use second way. Very often question is "What topic must I chose?". Chose a topic you are passioned about, becouse you will put new articles often and if you don't have enthusiasm this will be seen on your articles. Once you make the blog you must increase your traffic. Higher traffic means more money. You will ask "Ok, I have my blog and traffic how can I make money from them?".
One of the best and most used ways is Google Adsense. (You can read more about Google Adsense here).
You can increase your traffic (and earnings of course) by submiting your blog to as many of the social bookmarking sites as possioble. You can make profiles in social networks (which is free) and put there link to your blog. Also put your link at your signatures in online forums and other sites. I would wish you luck, but you don't need luck, just be persistend.
Regards!