# Sensex ends down 678pts; NTPC plunges 8%
# Yahoo! Mail now also for visually impaired
# GSPL to invest Rs 2,500cr in laying pipelines
# Core, ILFS, IGNOU in deal for learning centres
# No consensus between mobile firms, DoT
# Hotmail co-founder Sabeer Bhatia's InstaColl launches online Office Suite
# FIIs net sellers of Rs 2,008cr in cash market
# STC, Nafed and Spice Board form SPV
# Crude oil hits $99.29/barrel
# Ranbaxy gets Canada's nod for TH drug
# Sebi plans to introduce realty investment trusts