Right so, two hours condensed into a few paras as follows. iamwithnail and others have said some of it already.
You need to have a clearly defined project in mind with which you can tell a story (here is X problem, if you give us X money we can do X). Fundraising for ongoing running costs isn't likely to work. Break the costs down and be transparent.
"If you build it they will come" does not apply. Campaigns that go viral and engage a lot of new supporters are very rare. Basically you will be relying on your existing supporters - members, family and friends etc. If you don't have those networks yet you may need to work on building them first (email lists, social media followers etc).
People mostly give out of the goodness of their hearts but you can offer rewards such as mentions on social media, tickets to a launch event, gifts etc for different levels of donation.
Some crowdfunding platforms are geared up towards charities wrt gift aid etc and some are not. Kickstarter is an all or nothing model where if you don't hit your target you get nothing so there is a risk, but OTOH people browse it looking for interesting projects. Have a look at other projects to see what worked and what didn't.
You will need to commit time to promoting it before, during and after. Think through your messaging, keep it snappy and visual if possible. Who is your audience and why should they support you? A short video is a good idea (Kickstarter requires one) - you might be able to get local film students involved. It doesn't need to be high production. Involve press/media/relevant bloggers, tweet high profile people to see if you can get a retweet. You can trail the campaign beforehand "we're going to do this, watch this space". It's a good idea to do a soft launch to immediate supporters so that there isn't a big fat zero on the page when people look - "people want to be on the party boat, not the sinking ship".
During the campaign keep thanking people and giving updates. Ask supporters to share your posts on social media. It's only for a limited time so you can pester. Thank people afterwards and update them even if you don't make your target or have problems completing the project. Also make sure you know who has supported you, hopefully you have grown your supporters and can go back to them another time.
HTH!
Looks like this was the most relevant thread.
