Goldberg and Lupercio, two analysts of the online trading industry, estimated that about 40% of all trading volume comes from a group of 50,000 "semi-professional" traders who use the major online brokerage firms. The analysis was for the year 2003.

So a good guess would be 40%.

DIY?

Online trading has lowered commissions to the point where they are no longer the primary consideration. Ditto for good execution, if indeed they are Direct Access. If you decide later to trade commodities, options, futures, or currencies, TerraNova may be the only one that you can trade everything, real time, online, direct access. A lot of online brokerages claim to give you direct access, but if they take more than a second to execute your trade, it aint direct.

What you probably should be concentrating on is the best trading software or trading platform. But even then, everyone's criteria are different.

Find the articles online that have evaluated and compared online brokerages. I found a good one online in Barron's, but you'll find others in the trading magazines. Active Trader, Futures Mag, etc.

This is worth putting a little time and effort into, because it's a pain to switch, so once you choose, you're kinda stuck with it.

Townsend Electronics, the Parent company of TerraNova, is the one that digitized and electronified the Nasdaq. They are technological industry leaders and have a powerful and well built trading system.

I use RealTick at TerraNovaOnline, but it costs $275/mo. I think the Investor package is free to use, and just uses one screen.

What you should try is a free trial of their Investor platform, which is free. Their rates are good also, but of course, it depends on how often you trade. It will take you months to learn all the bells and whistles of what this program can do.

The other top-of-the line program is TradeStation, but it costs big bucks to join and operate. Some people consider it the Cadillac of trading and technical analysis.

TerraNova is the home of the Day Trader, so they think nothing of you making several hundred trades a day. You don't have to do that, but it's okay here if you do.

Go read some online articles that compare the main platforms. Just do an online search for "online brokerage comparisons" or something like that. I reccommend Scottrade as the trades are about as cheap as you will get. The downside is their margin rates are above average and I've seen mixed reports on their speed of filling trades. Still for me, they are perfect (but maybe not for you).

Etrade is supposed to allow you to trade on 4 or 5 stock marktes around the world – a huge advantage for a really smart investor or one that wants to focus on international stocks, but useless to most smaller investors (or most that want to focus on mutual funds – like you, maybe).

There are some other good ones. You'll find that OptionExpress is very good (never used this one myself, but they are well rated). More expensive that scottrade but margin rates are lower and maybe they are faster at filling trades.

Anyhow, thats my take on 3 of them but there are many more out there. Of course only used ones that are sipc insured, and again – I'd advise searching for more specifics on this via an online search. FYI, I think kiplingers had an areticle about this about 1-2 years ago. good article but alot can change in 2 years (and I'm not positive it was Kiplingers)

Best luck.

Be aware that 90% of day-traders lose money. The odds are way against you. I recommend trying swing-trading (a few days to a few months time frame) first. The pressure is less and the timing not so quick. The exact same principles that apply to swing trading will prepare you for trading on shorter time frames. Or … you might decide you were making enough money in swing trading to stick with it.

As for sources, check with your brokerage. Many of them make learning tools available to their clients.

Best of success.

Zecco.com offers $0 commissions but only gives you 1% on any cash balances. Remember, they are going to make money off of you somehow.

If you want a quick return on your money then trading in cfd,s is the way to go.
You dont actually buy shares as such but buy a contract on the assets.
You then earn or lose money on the opening and closing price of the asset.
Many people have got rich very quick from cfd's but there is also the risk of losing money quickly.
Finding a broker will help as they can advice you on stops that sell when the
asset falls below a certain amount you can afford to lose.
you can find more information at

http://www.cfd-to-cfd-trading.co.uk

Scottrade has the cheapest trading fees and lowest fees in general. There's a site with no fees, Zecco, but I haven't used them.

They are all basically the same on a beginner level. read my profile

You get proper knowledge like everyone else- losing lots of money first then figuring out why you did while trying not to do it again

I have used it for 1 month without any probelm , and the service is good.. It's free .