I thought this would be a useful thing to share: The UNDP is compiling a list of NGOs (Non-governmental organisations) in Lebanon. So far, the list looks like this.
Though I know many active NGOs who work on social integration, conflict resolution, tolerance, dialogue, etc. that are not on there. The UNDP invites NGOs who are not yet on the list to get in touch by filling out this questionnaire.

dear all. i would like to share your activities in lebanon, i used to live & work in the states,,,i am willing to help in any way i can in lebanon,,,i am good in arabic & english, i live in BEIRUT, looking forward to hearing from you. many thanks.
Hi Naji, I just dropped you an email about how you help!
Thank you!
Please, stop wanting to help Lebanon. You have been away, very good, stay where you were. By helping us, you are messing us up! do not you see?
how do u know me????
do you believe in what you wrote about Naji’s help? then why be anonymous? Now, you made me think twice about volunteering with people like you.
Nora Haddad
Luckily many of us still see the bright side.
How we go about registering as NGO? What kinds of funding we can expect to prosecute and investigate in Lebanon?
I’m not the right the person to ask as I’ve never really gone there, but consider contacting an NGO from the UN’s list. I’m sure they would have the answers.