Yet another startup has grew its member community phenomenally, becoming one of the most popular applications on Facebook. Picnik, just released a free public beta version of web-based editing and sharing application to its users, has more than 200,000 members joining the community, according to this press release. It was known that the Picnik/Facebook application was launched in May, and it also reached 100,000 users in that particularly month.

It will be interesting to take a look at this Picnik/Facebook application a few months or less from now, as it reach 500,000 or a million users, hopefully.