There are a few general principles or guidelines for writing a successful petition. Some important ones are listed here:
1) Use a website to create your petition form. It is the easiest way as you can have your petition up and running in a couple of minutes. We recommend creating your petition form at iPetitions.com
2) Write Clearly and Concisely: Prospective signers often don't have a lot of time. It's important to state your main goal concisely, and at the start of the petition. The first paragraph should make it absolutely clear what the petition hopes to achieve.
3) Spell Check and Proofread: This may sound obvious, but it's amazing how many petition hosts don't even bother to spell-check their petitions.
4) Use the Power of Email: Internet petitions are unique-and different from online petitions-because they can reach a global audience of millions with only a minimal investment in terms of time and money. Email, in particular, is cheap, easy, yet highly effective.
If you want to read in more detail how to write your own petition, you can read online guides such as Guide to writing successful online petitions or even a Wikipedia's petition reference page.