First off, please appreciate that BlueHackers is currently an initiative or movement, whatever you want to call it, and not a registered (non-profit) organisation. We are looking at the costs/overhead and benefits for that now, since obviously the early activity has struck a chord with many people!
Initial costs (such as for the domain name) have been covered by Arjen. Some funds were gathered through donations given around Linux.conf.au (Hobart Tasmania, January 2009) when handing out the first laptop stickers, this was used to recoup the sticker printing costs and some excess remains. These funds will be used for future endeavours including getting more stickers printed and distributed.
We don’t require a lot of funds to do what we want to do! But in the interest of full transparency, we are aiming to make a full overview of the incomings and outgoings (little as they are) public through for instance Google Docs, with a link from here. The BlueHackers funds are currently maintained in a dedicated Paypal account, separate from any individual. Should the project come to an end, all remaining funds will be passed on to a suitable organisation (such as Beyond Blue).
With all that in mind… we can’t accept any donations right now, until we have an organisational structure in place. Interaction with banks (or PayPal) is extremely difficult as a non-organisation, particular a non-profit one. Rightfully so, we suppose. We’ll get there. In the meantime, do keep spreading the word (and the stickers!)