Search first, post second.

Know the rules of the forum you are posting to, a lot of times common questions in whatever forum your looking at are already answered in the rules / stickys.

Post all the information. Example, I need Adwords for water4gas, will probably take a much longer time to get the answer your looking for than, I'm working water4gas on this landing page, I have already tried the following keywords with no luck, any ideas.

Follow up on your post. You may have gotten the instant answer, but for all you know that thread you have forgotten about may have blossomed and have some real gold in it. (Here at WA you can track your post by clicking the View your post http://my.wealthyaffiliate.com/wa_forum/search.php?search_id=egosearch link at the top.