Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain.
A layer that hide, redirect. forward, re-encrypt internet packet to keep VPN, Proxies and other p2p software hidden from Firewall. Free implementation for HTTP-Tunnel, UDP-Tunnel, port forwarding, port redirecting and packet re-encryption that can work in network data-link layer and transport layer