TIPS to help you spread the word about this petition
To keep the signatures coming, try seeking out news articles related to your issue and join the conversation in the comment threads. This will expose your petition both to the readers of the news articles, as well as the writers - journalists frequently read comments on their own stories.
To get the best response:
Present a thoughtful comment to a news story that is closely related to your petition. The more insightful and credible your comment, the more compelled people will be to check your petition out.
Try to say something that will provoke a positive response from others. A comment that gets lots of positive feedback from others, will be more frequently read.
If the comments are threaded (organized by responses), get your post near the top by responding to a comment near the top.
Remember, online readers are particular sensitive to posts that look like spam. So, use your real name, and don't just post a link.