I am planning to do network marketing, does anyone have any suggestions or hints or warnings? Thank you very much
I have to say YES to Blaze8 answer and would have said: the secret is that you have to OWN the network marketing company in order to profit from it.
You should rather do AFFILIATE NETWORK MARKETING instead of dealing with network marketing, as it is straight forward and you are not married with a specific company.
What you need to know is a lot of MARKETING know how first!
The key for NOT BEING SCAMMED is know ledge.
DO NOT JOIN A COMPANY. Invest in yourself first.
What makes you money is SOLID internet marketing Know How.
If you do not know how to promote offers on the Internet, you will fail.
The way to make money online can be done in two ways:
1.) create your own digital products and sell them and get paid for it
2.) offer your service as web designer or marketer and get paid directly
3.) market OTHER products from companies that pay you a commission
this called AFFILIATE MARKETING
for 3.) which is in my opinion the best potential you need to do a research
on which companies you can trust, HOWEVER! – i you need the same know
how that is needed for 1.) and 2.)
You need to understand the marketing basics.
NO Product sells itself. Do not fall for stupid websites that claim
that their products sell literally "themselves". (I personally even promote
a lottery network and people love to play lotteries, but you still need to know
how to read people that are willing to PAY FOR LOTTERY TICKETS!).
OK, you need to learn the following things:
1. How people move online – what is "traffic" – how do people find websites online
and buy there?
2. How to create a website that sells – this is a know how you need either to sell
your own OR other products. It is important that you understand that it is not so
difficult to create COMPELLING websites that make people WANT TO BUY from
you.
3. Learn psychological strategies and sales processes.
I CAN ONLY REPEAT:
without this know how you will fail with all companies,
whether they are legitimate or not.
Do not join anything before you have solid know how.
No magical program will make you reach, only getting yourself
to the point to know what you need to do.
HINTS TO GET STARTED:
1.) Learn how to manage yourself first
http://www.twittermega.com/time-management (free!)
2.) Learn the basics on marketing and Internet Know How
(those resources are not free, but solid)
be careful with a lot of "free resources", they always
still want to sell you something are are never "independent"
http://www.twittermega.com/time-management
http://www.twittermega.com/affiliate-marketing
http://www.twittermega.com/webmaster
3.) Master the basics, then you can choose any product
or company and make money with them.
THERE IS SO MUCH CRAP OUT THERE, you need to
invest in yourself first and do not believe false claims of
websites that tell you unbelievable "over night" riches.
http://www.ybc.tv for facebook marketing tips… Facebook was originally developed as a social networking application. You can use this to build a large network of highly qualified contacts – fast!
http://fitnessleveraged.wordpress.com/
Legendary marketing maverick, Keith Chambers, shares his successful and innovative techniques in Pull: 
http://GreggDavison.com