Hi there!
I just started writing a book. It is a science-fiction book. Will you help me write it?

... I just can't find a suitable reply ...

Then why do you reply anyway? This is called "off-topic" and I will have to report it.

what's the setting, space age? post apocalypse?

heh..exactly DUDE_200. Without all of that information, how do we "help". It's you asking us to help you renovate a house, but we have no idea what needs to be done.

I sure can't help you with the content, but a bit of advice: use LaTeX for the typesetting. You will be able to use your favourite ASCII editor for the writing, and still get a far more beautiful result than what you get with a word processor.

Here's a short article I wrote showing you how to do just that:

My Documents: LaTeX for the nontechnical user

Yes, I will use LaTeX.
DUDE_2000, the setting is space age. A group of people (or perhaps only 2) land on a distant planet somewhere deep in the galaxy. The spaceship seems to be broken and cannot depart. These people are then trapped in a new world. They start exploring the new planet and try to escape it somehow.
My idea is not clear yet. I would like to set a tragic and desperate atmosphere because there won't be too many persons. Something like Robinson Cruso or "Lost"

Don't listen to those losers, I'll help you out. You're off to a really good start, so here's the rest.

The people find a couple robots out in the middle of nowhere and find out they belong to this old man. On their way to look for him, they run accross this dork with a cool car thath floats. The dork offers to give them a ride because he knows where Old Spice lives.

The get to the wrinkled guy's house and the robot shows this video of a hot chick asking for help. The old guy talks the dork into going with him to help this hot chick. They need a ride, and they find this space pirate who they pay to take them to where they have to rescue the girl.

They rescue the girl from the main bad guy's space ship, but its not over, its just getting started. The bad guy blows up a whole planet. So the dork, the chick, the pirate, and the old guy decide its time for whup ass. Old Spice trains up the dork to be a real cool fighter who uses glowing laser num chuks... no wait, make it a glowing laser sword instead.

So the rest of book they're going after the bad guy, and eventually blow up his whole space station and slow down his pursuit of taking over the whole universe. If you want to write some more books later on, throw in a twist - something like the dork with the laser sword finds out the bad guy is his brother... no... that won't work..... his father.

I've already got ideas for the next books in the series. After we've sold some copies of this book, lemme know and we'll work on the other ones.

Sounds like a cool setting for introducing all kinds of story lines.
old alien machinery, time portals etc. just waiting to be discovered by the castaways...

Okay, do you have anything in mind if I post my book here?

@Rasczak: Being sarcastic again? Sounds like a bad action movie, not really tragic.
What about how they got on the planet? Where were they going. Does not have to be a crash landing, perhaps something really banal? Maybe a cargo ship or something, and they have all these rubber ducks on board.
Hehe, this is going nowhere

I was thinking of scientific expedition. But the space-ship goes in the wrong direction and instead of going home back to Earth, it travels deeper and deeper in space. The crew decides to stop it because it becomes very dangerous. The only choice is to land on a planet.

that is inhabited by lesbians. However, there is a problem,

I feel a disturbance in the force.

Here are my comments:

• Keep the plot moving.
• Don't waste time explaining everything, let there be some sense of mystery. At the same time, make sure you know the reasons for what is happening and that your reader can figure it out.
• Make your characters interesting. Give them depth. Don't let any of them be boring, unless you plan to kill them off quickly. If your reader doesn't care about the characters or the plot, they won't read what you have to say.

Yes, you're the problem!

You're writing the ghostwriter(s) into the plot? Interesting

What is this?

I used to write novels quite a bit, and its been my goal to get back into it.

To be honest, I prefer the whats the most unexpected thing that could happen, happening approach. If they are on an alien planet, crashed there, then they should also be charged with littering, uttering a foreign language on republic soil, and attacking the planet with their ship. Throw them in a dungeon with other alien species, stage a breakout, then they should join a revolutionist movment to stop the dictators of that country, only eventually to discover that they were not actually kidnapped by the government of that world, but by the revolutionists who wanted to recruit aliens to their cause. I could go on, but i am just going to stop here.

edit:
I CANT STOP

They are about to freak out at the revolutionists when they discover everything was a ploy, even the ploy, they were actually in an alien rock and roll video.

^^
that sounds like an episode of stargate, its soo hard to come up with something original, when all of its been done.

If we help do we get a share of the royalyies?