These methods to earn linden are almost ancient in second life terms.
None of them are really generating a constant income to support your second life habits. Nonetheless, they can earn free linden here & there while you're hunting the bigger trophies.
Below are a few tutorials how these linden earning methods work.
Money Tree (Linden Tree)
Money trees are actually growing money. How cool is that? Only possible in second life. As far as i know anyway. It's mostly targetting newbies & gives out. small amounts of lindens.
The creator of this generous device deserves a big pad on the shoulder!
Have a look how this works:
There are still 100s of money trees spread across the grid today making newbies happy. Just use the SL search engine to find them
Last thing I heard was that camping is against the rules but you still find the occasional street sweeper & window cleaner around the grid.
There once where gazillions of ways to camp for money. Check out how out dance camping works.
If you find devices that hover text above them telling you to get paid 1L$ for 10 min...Usually that means here is where you can sell you virtual labor. Good thing with this job is that your CPU is doing it. Bad thing is that this activity was banned mainly because half the SL grid was populated by zombie bots frantically rubbing floors n windows or even doing much much much crazier things on adult sims.
|Free Instant Lindens|
Second Life Lucky Chairs randomly pick letters. If your name starts with that letter while you're on the land then make sure you put your behind on that chair to grab a few free linden.
See here one version of it.
I have one at my store in second life. Tp over to FIRELIGHT EXPRESS - THE ONE STOP LINDEN DOLLAR SHOP and try it out
Don't forget to join our group FREE LINDEN DOLLAR EXPRESS to use this lucky chair