Which ways exists to make money from Froum?!

Hi, I decide to develop a Forum professionally..
Now I want to research about this:
How we can make money with onlie forum? which ways can exists?
thanks for all sugges

 

• text link ads
• banner ads
• stick posts
• advertisments in monthly email
• paid trade market place sections

 

oh, .. I'm newcomer.. can you explain a bit more about sections 3, 4 and 5..

 

stick posts
posts can be made sticked on top of other topics.

email ads:
email can be sent once a month to all members andd u can get advertisers in that emailer.

paid market place:

trade section can have a particular charge per post, say $1 or $5.

 

Don't forget subscriptions / donations.

 

donations would be a very good idea since people get so much info on forums that they would probably be willing to pay for if it were not available other wise. you could also look into selling banner impressions after the site has enough traffic. just dont TO existing members