Every site has its own set of guidelines but I think if you adhere to the following more of your articles will get published. It is best to check each sites set of rules (but who has the time) or follow this basic set of dos and donts.
1.Do submit articles on a regular basis
2.Do capitalize the first letter of every word in the subject line
3.Do check the spelling and grammar and then check it again
4.Do write original articles about topics you have a passion for
5.Do write articles that are about 400-800 characters in length too short and too long will be rejected
6.Do write an article not a blatant advertisement
7.Do check the paragraph formatting
8.Do write an informative Authors resource box
9.Do use HTML tags (if allowed) I would demonstrate an example of a proper link but most likely it would cause the article to be declined. Just Google HTML link to see how to do it correctly
1.Dont capitalize every letter in the subject line
2.Dont bold the subject or your links
3.Dont submit more than 2 links in the authors resource box
4.Dont put links in the text of the article
5.Dont cloak...