Twitter is the biggest social networking site on the internet today.  Twitter is a quick way to stay in contact with loved ones, business associates, friends and start new relationships.

Twitter limits their messaging to 140 characters.  Unlike blogs that involve more thought and research, sending a tweet is simple and quick and can enhance your search engine marketing plan.

People twitter for a number of reasons.  Some purely for social reasons and others to promote their business or just seek information. 

Twitter is only effective if you use it properly.  You want the time you spend on social media sites to be worth it.  Twitter is just one key to having a successful search engine marketing campaign.