Sage Connection has an article on writing good abstracts.
What rarely gets covered in all this are the actual key findings of the article. Readers are normally left to guess what the researcher’s ‘bottom line’ conclusion or academic ‘value-added’ is, still less what key ‘take-away points’ the author would ideally want readers to remember.
The article has 10 specific suggestions, with particular questions to help you figure out what you should be doing and how to do it.
Choosing Titles for Academic Papers also looks interesting.