Naomi has had direct involvement (through a summer internship) with this ministry and this one. Both have paypal options for donations (and they send you receipts via email). They are not near the capital, but sadly (understatement) the capital is a disaster area and they are able to help from afar.
Hosean Ministries is working to bring 45 people from the affected areas to their area (Pignon, Haiti) and will then be working to bring many more.
Please be praying for these ministries and the people in them.