Babysitter sites

Hi Everyone,
Just wanted to recommend a few awesome sites I've used to find a babysitter- if anyone has any other sites/services they use I'd love to hear about them

https://www.babysittermatch.co.nz/index
http://www.carefinder.co.nz/
http://www.babysitters4u.co.nz/
http://www.babysittersguide.mobi/
http://www.greataupair.com/

And also I've heard of this new app or website (not quite sure what it is) called sittr which looks interesting so am keeping my eyes peeled for when it's all fully set up!