The top picture (scroll up) is Sai Janane, who signs herself SJ. Based in Kuala Lumpur, she has a busy weekday job so visits this group mostly at weekends.
Lesley Croft is based in Hong Kong. She works in education, but also writes a lively blog herself: Lesley's blog. She has lived in the middle east and has some great tales to tell.
JSB is Joshua Samuel Brown, a well-known journalist who writes “gonzo journalism” and travel books, including some for Lonely Planet. I found this pic of him on the internet and thought it said something about him as an explorer of Asian culture (he is on the right). His blog is called Snarky Tofu