AS per my experience in SMM in raipur Daily posting with unuique quality and eye catching images and to engage people in intresting discussions are the best way to boost facebook group
Hmmm are you sure it's 2500? In how long time did you join all of them?
In my experience, joining too many groups at once gets you a block from joining any more groups for a while.
I have just create a new Facebook group name "Make Money Online/Affiliate Marketing", I added 150 friends to the groups but some didn't like that because I added without their permissions.
What are the best methods to boost a new Facebook group and attract more new members join it?
I am member of about 1000 groups split across about 5 fb accounts.
I provide it as a service
here.
The best way to get members for your group, is to post on groups that are related to your niche.
Also, make sure your group is a PUBLIC group and not a CLOSED one.
Public groups generally get much more members than closed groups do.
Most of the groups I am member of are in this niche, IM/SEO/MLM/Advertising type groups.
These are Facebook's biggest groups.
Drop me a PM and I might be able to do something for you by way of advertising your group on all of them.
If you just want to buy the groups list, I sell them also.