Camram is an anti-spam system that for the first time makes practical the holy grail of sender-pays email. It forces spammers to expend unsupportable levels of effort while imposing negligible burdens on everyday users. Its "hybrid sender-pays" design provides anti-spam benefits to the first user that adopts it, while supporting graceful scalability to massive numbers of users.
could be significantly better
having had a fair amount of experience with wikis, including teaching a CEO type how to use them, I have come to the conclusion that they are three-quarters a good tool. The ability to create new pages and using a relatively simple markup language is a wonderful benefit. However, the Web browser based user interface for editing is most politely described as a stinking pile of poo.
In this day and age, there is no excuse for exposing any user to a markup language unless you truly hate your user community. The argument about markup language is giving the user more power may be true in very rare circumstances but in most cases, it is nothing more than bragging about the size of one's technological manhood.