Freshmeat page: http://freshmeat.net/projects/echolot-pinger/
Echolot is a Pinger for anonymous remailers.
A Pinger in the context of anonymous remailers is a program that regularily sends messages through remailers to check their reliability. It then calculates reliability statistics which are used by remailer clients to choose the chain of remailers to use.
This project has the following developers:
New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!