80 = HTTP, but what else is there?

Big List of port numbers and their official assignments.

Some key ones:

• 21 - File Transfer (FTP)
• 25 - Email, out (SMTP)
• 80 - World Wide Web HTTP
• 110 - Email, in (POP3)
• 119 - Network News Transfer Protocol (NNTP)
• 194 - Internet Relay Chat Protocol (IRC)
• 443 - HTTP protocol over TLS/SSL (HTTPS)
• 8080 - HTTP Alternate

Link:
http://www.iana.org/assignments/port-numbers