[itake]

Lots of websites are wise about disposable email and reject those domains. Query "10 minute mail" and you get a list of blacklisted email domains.

The services that new or don't have much traction aren't blocked yet.

[milosmns]

Yes, that's precisely why I'm querying more often than bookmarking sites. They "expire" soon so I kinda have to find replacements. Apple's situation is interesting, I don't think sites can ban Apple's iCloud completely. It may also be an opportunity for Gmail to copy the feature..