Here is an article which is a very good read on bonuses and splits. Not that I was unaware of this, but the author has explained the differences between bonuses and splits in a very uncomplicated manner. The author also talks about the implications of both on the equity capital of the company.
BTW, if you are not already following it, Value Research Online has a great site for investment information. They also publish a a very good magazine called “Wealth Insight”.