To work online from your home, you obviously need to have an access to a computer with internet connection. If you don't have it, acquire it first.

In the Philippines, internet has become very accessible through internet shops. Cheapest that I know of is Php 10.00 per hour (around $0.208 US at Php 48.00 = $1.00 USD). Internet shops should be just around your community. So if you have no computer with internet at home, go to the nearest internet shop. TIP: don't spend more than what you will earn. :)

The next set of tools you need depends on the nature of work you are to accomplish online.

If you are to do data entry work, research work, writing work, blog posting, forum posting, product reviews and all other jobs of same nature, for these you need to have access to the website where your output should be published on or, your employer might just have asked you to send the deliverables through email which is must more easier on your end.

If you are given much bigger responsiblity such as doing minor to major maintenance of a website wherein you need to download/upload files (graphics, html files, css files, php files and other source files) then you need to have FTP client program to access the hosting account of that website. Your employer should have provided you the HOST URL, USERNAME and PASSWORD of the FTP account.

Next, you need to have necessary editors to edit these source files and through the FTP client program, upload them back to the hosting account. For text editors (css, html, javascript, php) I am using a light-weight and free tool - HAPedit. You can download it here. Need FTP client program? I do like Filezilla, get it here.