Wikipedia: "Day trading refers to the practice of buying and selling financial instruments within the same trading day such that all positions are usually closed before the market close for the trading day. Traders that participate in day trading are called active traders or day traders.

Some of the more commonly day-traded financial instruments are stocks, stock options, currencies, and a host of futures contracts such as equity index futures, interest rate futures, and commodity futures."

Day trading has become popular between traders as it can be extremely beneficial financially, provided you manage it right.

Basically it's buying and selling financial instruments like stocks or bonds within one day. There are several day trading strategies that you can use to take advantage of this market corner.

One of them is scalping - you buy usually a volatile stock on the way up and sell it immediately when it reaches the point of profitability for you.

Day trading requires a fair amount of knowledge about the stock you trade, so it pays to watch and learn before you make the move.

The best time to enter day trading is right after a new trend started and then again when it ran its course. Starting in the middle creates additional risks.

In general - don't let emotions dictate your move, keep your strategy simple and avoid overextending yourself. Trading is very lucrative business if you do it right, but it's also very risky, so play it safe and don't spend the money you don't have.