Webserver: I used to use Apache but am now a happy Hiawatha webserver user. Hiawatha switched to PolarSSL a while ago.
Another big change is that OpenSSL has been replaced with PolarSSL. Unlike OpenSSL, PolarSSL is well documented and easy to learn. Hiawatha's SSL library is much cleaner and simpler due to PolarSSL. No more dirty callback stuff to make it work.