http://packages.synocommunity.com
http://e-remonty.info/spkrepo/packages
http://packages.missilehugger.com/
http://www.cphub.net/
http://synopkg.superzebulon.org/spkrepo/packages
http://packages.pcloadletter.co.uk/
http://update.10trum.de/packageupdate/getpackages.php
http://synology.mdevries.org/spkrepo/packages
http://synology.sysco.ch
http://packages.hoel.dk/
http://spk.q14six.de/
http://packages.quadrat4.de
Synology Package Sources Monitor (not source)
http://dottoremoe.com/synomon/
More packages source
http://spk.unzureichende.info/
http://www.christoph-papke.de/spkrepo/spkrepo/packages
http://www.cphub.net/index.php/getpackages.php
http://cbo.netau.net/synopackages/
http://www.need-soft.com/packages/index.php/spkrepo/packages
http://cytec.us/spk
http://subtitlessh.no-ip.biz/repo_spk/
http://synology.sysco.ch
http://repo.synozwave.com/
http://packages.page81.net/
http://packages.synology.me/spkrepo/spkrepo/packages
http://packages.jdel.org/