You can watch it on Veoh TV. You have to download the application, but it's free and doesn't harm your computer. There's a LOT of anime on Veoh TV, and the quality is quite good, if you download each one and delete it afterward (instead of allowing the video to stream).
They also have it on Anime Season. Both seasons as well as all the episodes are up online.
http://www.animeseason.com/saiunkoku-monogatari/
http://www.animeseason.com/saiunkoku-monogatari-2nd-series/
It's not out subbed yet crystalis is subbing but is now taking a break. Think it will be out in may.
otakuholics
Bakemonogatari - 2009 Nadeko suneiku sono ni 1-10 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Tsubasa kyatto sono ichi 1-11 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Mayoi maimai sono san 1-5 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Tsubasa Kyatto Sono Go 1-15 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Suruga monki sono san 1-8 is rated/received certificates of: UK:15
Bakemonogatari - 2009 is rated/received certificates of: Australia:MA15+ South Korea:15 UK:15
A monsters story~
Bakemonogatari - 2009 Tsubasa kyatto sono ichi 1-11 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Nadeko suneiku sono ni 1-10 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Tsubasa kyatto sono san 1-13 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Hitagi kurabu sono ni 1-2 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Mayoi maimai sono ni 1-4 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Nadeko suneiku sono ichi 1-9 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Mayoi maimai sono ichi 1-3 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Tsubasa Kyatto Sono Yon 1-14 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Suruga monki sono ni 1-7 is rated/received certificates of: UK:15
Bakemonogatari - 2009 Tsubasa kyatto sono ni 1-12 is rated/received certificates of: UK:15