Comparing data on broadband coverage across OECD countries still faces some challenges because of the use of different metrics across countries. This report aims at providing information on the advantages and pitfalls of existing indicators used to measure broadband coverage, considering coverage related to different types of technologies (e.g. xDSL, cable modem, FTTH/B, 3G, satellite, WiMAX). Every technology capable of providing high speed Internet access involves specific issues when measuring availability.