http://paguspages.i2p/mown_blog/target/more_ugly_links.html
An anon posted this link collection it is quite sad, sobering, that most of these sites will go offline within a human livetime (likely they will be all down in 50 years) While browsing the I2P-Net I found a critique of i2p address book, which kind of relates to this post, I will quote it here: Regarding Address Books Having an address book built into I2P is more harmful than helpful.