viggen - 10:48 am on Jul 8, 2011 (gmt 0)
The obvious answer is to create a high quality website. If it's high quality, then people will click its buttons on their own choice, and special "strategies" won't be necessary.
Even if you have a high quality website, having a strategy on how to get more +1 is going to benefit the total count (if that is something desirable and needed is a different topic)
High Quality site A has a strategy and High Quality site B hasnt, who is going to have more +1`?