Internet Traffic Report:Reports on the current performance of major Internet routes around the world.
AT&T IP Network Performance: Data on AT&T's IP Network Performance. AT&T manages one of the Internet's backbones.
Internet Health Report: Delivers data about network performance (latency) between major United States Internet backbones.
Internet Measurement Infrastructure - CAIDA: Short summaries of current measurement projects offering public reports.
IPMA Statistics and Daily Reports: The Internet Performance Measurement and Analysis (IPMA) project collects network statistics at the AADS, MAE-East, MAE-West, PacBell, and Sprint interconnection points.
Long-Term Traffic Statistics: Technical information and links regarding long term statistics. In depth Analysis of traffic over the major protocols.
Measurement, Analysis, Modeling and Generation: Bell Labs research group. Contains theories, statistics, reports, and free measurment tools for networks.
The Internet Traffic Archive: A moderated repository to support widespread access to traces of Internet network traffic. The traces can be used to study network dynamics, usage characteristics, and growth patterns.