Cherry Picking The Diamonds From The Stock Market

Should I Invest in Video Game Company Stocks like Activision & Take Two, They are about to release great games?

Actvision is going to release call of duty 4 2, diablo 3, starcraft 2. Would that affect its stock price in a positive way?

Well that could definitely give the price a push up. your stratergy is called Fundamental Investing. the idea is that you invest in a company based on its strength or what is going on.

Can i suggest you research fundamental analysis and learn how to do it well.