SLDF describes itself as a multi-ethnic forum of expatriate Sri Lankan human rights and democracy activists, with activists in North America, Europe, India and Australia. During the war, the SLDF regularly released press statements and reports.
Download a full archive of their site here.
After the capture of Killinochchi by government forces, NESOHR unsurprisingly went silent. They are now back online, with an address still in Killinochchi.
As it is unsure how long they will be able to operate, their entire site, including archives dating back to 2007, can be download here.