The Golden Rules for successfully playing the HUBDUB

sell high, buy low!
But really, predict on things you know about.

While there are ways to make $H on both sides of a market, if it is a volatile market (like markets about the DOW, NASDAQ, etc), it is preferable to find a market where you feel confident of the outcome, and place wagers on that choice.

If your net worth is below $H3k, ...

You should not take positions for over $H100. (you're not getting the best returns because you end up moving the market up prior to your purchase.)
You would do much better making multiple $H20 or $H50 even though it may take more work and more time.
You need to shop around for a market where your prediction is below 40%, or preferably lower. (Buy low, sell high, applies here).
You want to avoid long-term predictions. You want your $H to churn, constantly making you money.
You want to cash out your position if it reaches 95% or more, and still has time before settlement. You can put your money back to work.
Avoid markets where your prediction has already hit 95%, even if it will close in a few days. You can make more profit on some other market by that time.
Do not place your wagers when your predictions are at or above 50%. While you may be sure of the outcome, again, your return is not agressive. Take a position when the percentage of your choice is below 40% (preferably less) in order to get a better return. In truth, if you want to grow rapidly, you need to shop around a bit, a take positions where your choice is below 20%. Then, other Hubdubbers who feel the same, will drive your 20% placement up to 50% or better. At this point, you've made 30%+ on your position. If the event is not going to be settled for some time, cash out your position and go shopping again.

bet on what you know, enjoy the witty comments, don't worry what anybody thinks and/or has to say, everyone plays for a different reason so be true to yourself and to your own personal satisfaction

oh yeah if there is nothing you know or are interested in , then post your own questions

I think the first thing to understand is that there is no magic rule, or trick to making money. What a person notices who sees those moving up and down the leaderboards, is that those who spend time on the site, looking at questions, researching news, and making predictions based on informed knowledge tend to do better. As was said above, watching markets move to get a feel of the flow can really help. Remember as more and more people read these posts and move a market the same way, the less likely it will be to make money using those methods.
I do agree with meanderingsearch, I usually put predictions public that I want others to wager on the same direction I am to push the market in that direction. Sometimes I will show a prediction to settle a dispute about putting money where opinion is, but for the most part I keep my predictions hidden.
I like to keep a watch on new questions, usually can get good odds on a new market. Only downside is waiting the 12 hours before being able to cash out. I also like to watch questions in which alot of action is moving the markets, there ususally is chance to either make some quick cash profits, or get in a good long term position.
I agree with those above that playing long term markets (those lasting more than 3 months) are generally a big waste of cash. While you might get decent odds, the position will slowly move and your money be tied up too long.
My closing point is to have fun. Comment on questions, get involved and then regardless of profit or loss you will at least get a feeling of satisfaction..

pretty good tips here so far.

try and set a percent gain per day you want to make. let's say 10%. so on day two you're hoping to have turned your initial $1000 into $1100. remember this is the sum of your cash and the current value of your predictions. it doesn't seem much, but after a month, a daily growth of 10% means you'll have about $20,000, and after two months $400,000.

if you make a wager, and the market turns against you because of events that change the likelihood of your winning, just cash-in the wager as soon as possible. cashing-in a losing wager may feel like a loss, but it doesn't change your net worth. it does, however, prevent your net worth from dropping more.

don't worry if you make incorrect predictions. everyone does. the future is unknown, all you're trying to do is to be right a little more often than you're wrong

take what i say as u wish..alot of this is computer access i think..it allows u to buy and sell at good prices but here are some things i have done..everyone can have their own system..1-try only placing wagers up to 300 bux at a time (for those who have it)..more than that really tilts the odds but for some reason some questions, especially i find politic ones tilt even more so watch the odds and it allows u to cash out some of ur wagers at good profits or less losses and keep some others if u want.-2-three words i try to hubdub by (not always succesful)..dont be greedy..if u are making a profit ur comfortable with cash out..its not worth making a few hundred dollars to lose everything..cash out and move on-3-this one may be time consuming at first but will save u time in the long run..go through all pages of questions..find ones ur interested in either short or long term and do what i call open a portal which is to put down a low amount just so u have it in ur hubdub so when u go to ur hubdub and it gets closer to closing or u want to do more research u can and it allows u to check the odds to see whats going on with it..once u do that u really only have to check for new questions-4-when i see stuff at like 90 percent or whatever even if it looks sure like brittany spears moving in with klum i could make a small amount but to me placing big money on a person like britanny isnt worth it because she does some far out stuff..id rather put money on something like a corporation or country because that seems like a more intricate process-5-wager on what u like not just the odds because just because u think a market may move big doesnt mean ull b online when it happens so at least if u dont ull have made a wager u wanted..i'll take my 10k now destry..:)..i hope this doesn't help people too much though