I just uploaded my holiday photos online at flickr! That’s when I noticed a “Share this set” option. It makes things very simple:
- I can share photos with friends without having them to sign-up on flickr
- I can share even private photos with someone I may want to share this particular set but not the other private photos from my flickr collection
- “Share this set” generates a Guest Passkey which I can expire when I want to stop sharing the photos
So photo sharing made even more easier now. BTW, if you are a Yahoo user you can use your Yahoo id to sign in at flickr.
Kapil's Korner 
Luv this feature…. cause i am sick and tired of those nosey ppl who like to nose around in my albums to find out wer I went, wht I did, who is this who is tht blah blah …