spurofthemoment

VPSes with 1 GB of RAM are more than enough to host a couple of web apps (depending on traffic of course) with Python, PHP, or similar setups. When Linode started out, their bottom offering was actually 512 MB if I remember correctly, and SliceHost (later Rackspace Cloud) had 256 MB offerings.

Which country are you in exactly? Because AFAIK, in most Northern European countries people have credit cards (or at least debit cards).

Or something similar. The important thing is that they shouldn't have to log in each time they visit the website, because then using email would cause the login process to be too slow. Again, using the password-less login for websites with sensitive data (such as banking) wouldn't work, since those sites require the user to log in for each session.

Persona is a no-go for me - I just don't believe that it will ever take off now that Mozilla has put it in maintenance mode. Mozilla has vowed to keep the servers up, but other than that they don't seem to be doing anything to further Persona's mainstream adoption.