I find it sad that many even quite popular online platforms still do not offer TLS/SSL encryption for the login process and beyond that to keep users passwords and data safe. In some cases the option to use encryption is available but not everybody is aware of that. So I compiled my personal collection of bad examples in alphabetical order that do not use TLS/SSL encryption or only after manually changing the URL (https instead of http). At least on two them you can login via OpenID which is is great but so far not widespread solution (and was just recently proposed and discussed to be used as identifier for scientists).
Here is the list. SSHame on you! Hopefully you fix this soon.
| Site | SSL availability |
| BookCrossing | not per default |
| connotea | not at all (but has OpenID) |
| CouchSurfing | not per default |
| CouchSurfing Wiki | not at all – you end up at couchsurfing.com |
| friendfeed | not on the frontpage |
| identi.ca | |
| kluster.com | not per default |
| nature network | not at all |
| OpenStreetMap | not at all |
| OpenMoko Wiki | not per default |
| OpenWetWare | not per default |
| PLoS manuscript submission e.g. for PLoS ONE | not per default |
| tumblr | not per default |
| not per default | |
| Wikipedia | not per default |
Please feel free to correct me if I am wrong or send you personal candidates.
BTW: If you do not want to trust an external OpenID provider you can set up your own OpenID server. There are many easy solutions for doing this. The DiSo project has created an OpenID plugin for Wordpress so it can be used as an OpenID client and server.