Things to look for

We should investigate the flexibility of how you can define the goals, e.g. can you only have one, or can you have many? For the former we probably would have to setup a separate campaign for each deliverable (which may introduce more overhead), and but for the latter we could just make each deliverable a sub-goal of the general "Fund Tails development" campaign.

We should also investigate the financial overhead (e.g. fees) of these options.

Here's a useful report about crowfunding: http://whois--x.net/x-net-publica-informe-sobre-situacion-crowdfunding The interesting bit is this table comparing different sites (page 8).

Candidates

Bountysource

Website: https://www.bountysource.com/

After a quick glance this looks very promising, as its model is a bit more aligned to something suitable for open source projects compated to general crowdsourcing sites. As far as I understand, Bountysource has something like the following concepts:

  • Fund raiser, same as in other crowdsourcing sites (time-limited, has a set funding goal (in terms of money)).

  • Bounty, unlike fund raisers these don't have a time-limit or funding goal (in terms of money). They can even be left open, meaning that other community members can assign themselves to the bounty, implement it, show it to the parent project and then reap the bounty, suitable for wish-list tasks.

  • Parent project, which can own several bounties. The interesting part with this is that I think it may encourage continuous contribution from backers.

I'm not sure, though, what would be most suitable model for funding development for us. Fund raisers are good since they have a time-limit and funding goal, which I think encourage backing sooner rather than later since they're not as open-ended as a bounty. OTOH, if we'd use a bounty, we could specify such things in the description. One bad thing with fund raisers is that they cannot be owned by a parent project (like in other sites, they seem to be thought of more as a way to fund the creation of a completely new project, not add stuff to an existing one).

Fundageek

Website: http://www.fundageek.com

Pledgie

Website: https://pledgie.com

Kickstarter

Website: http://kickstarter.com

Indiegogo

Website: http://www.indiegogo.com

Joey's DYI solution

Website: https://campaign.joeyh.name