Odpověď jak vydělat peníze jsem našel na nějakém anglickém fóru. Myslím, že je to pochopitelné, sorry, nechce se mi to překládat.
Anyway, basic ways of making money:
Trading
Buy items at low prices, sell them at high prices. Energy Cells are always in demand, but Silicon Wafers and other products are bigger money-makers (if you know where to buy and sell). Get a Best Buys Locator and Best Selling Locator from the Teladi to make best use out of trading.
Combat
On the BBS, people will offer money if you kill someone for them. This person will be guarded by a few lesser ships (e.g. an M6 with M3 guards, or a TS with M4 guards)...money made from the hit and the ships involved in the hit are directly dependant on your combat level; you're not going to be asked to take out an M6 if your combat rating is "Harmless"
Piracy
My personal favourite, picking off lone ships in a sector and hoping that the pilot bails out in what can sometimes be a very drawn-out dogfight. Know what to fight and you can make a fortune from it - just watch out if you pick a fight with a ship that has a rear turret (e.g. Argon Novas or any TS ship)
Mining
Equip a ship with a Mobile Drilling System (requires XL cargo, so you're looking at a TS for the job) and an Ore Collector (and preferably a Mineral Scanner as well). Head out to somewhere with asteroids (e.g. Ore Belt) and use the Drilling System on the asteroids to extract ore, which you can gather up to sell on. Similar in a way to trading, except that your resource (Ore) is free, so it's 100% profit...just a little time-consuming gathering the ore.
Space Fly Hunting
Requires an Ion Disruptor and a Spacefly Collector. Space flies are little yellow/golden bugs that you may sometimes see while you're flying around. It's possible to stun the little buggers with the Ion Disruptor and gather them up while they're stunned. Can be profitable (average price for one space fly is 3,088 credits), but spaceflies are considered as illegal cargo by everyone except pirates and Split. It can also be fairly tiresome waiting to come across a group of spaceflies.
Prodat jdou v: Pirate Base/Pirate Anarchy Port/Split Chelt Space Aquarium/Split Rastar Refinery
BBS Trading
BBS trade missions, whether it be normal trade items (e.g. Energy Cells) or special trade items (e.g. Teladianium Panelling), are generally more profitable than plain old trading for the simple fact that you get a nice little bonus if you complete the mission within a (usually) very forgiving time limit. In the cases with normal trade items, the prices are also at the highest they can possibly be (e.g. Energy Cells are bought by the station for 23cr - they're ONLY worth that much through BBS missions; the most they're ever worth at any other time is 22cr).
Taxi
Get a fast ship and transport people from station to station. The missions that specifically ask for a fast M5 should be avoided unless you've got a Paranid Pegasus (that beast, when fully upgraded, is over twice as fast as any other ship in the game, and it can go from north gate to south gate in about a minute, without SETA)...however, missions that don't specifically mention a ship are quite easy if you're in an M5 and although not worth TOO much cash (2,000cr or thereabouts - it's in increments of 500cr anyway), they're still easy cash and familiarise you with the game and the X-Universe.