Medyabim Internet Services popped into the Turkish top 10 for May 2013, hopping up from #81 to #5. This happened starting about 23 May 2013, probably coincidentally about the same time as the disturbances around Taksim Square in Istanbul.
Previous chronic Turkish spam winner TTNET 9121 made it back to the top, and this time TTNET placed twice, with AS 47331 as #6. Together the two TTNET ASNs sent 49.26% of top 10 Turkish spam for May 2013.
AS 43391 NETDIREKT-TR and AS 42926 RADORETELEKOM battled through the whole month for spots #2 and #3.
In better news, Tamer Gigabitweb Turkey and DorukNet IstanbulTurkey dropped out of the Turkish top 10.
Also new this month are v2 rankings back to January 2013.