Looking for historical data (possibly 1995 - 2005) regarding evolution
of credit spread on interest rates for (junk-) bond issuers in the
telecom and IT industries.

I suspect you'll have to offer more than $5.00 for this one. Someone
with a Reuters or Bloomberg feed could get you the data in about 5
seconds, but I don't know of any free resources online that can give
you sector-specific historical yields (allowing you to back into
spreads) by credit rating.

Thanks for the suggestion. I will increase the offer: however 1$ per
second is not that bad. That sums to 60$ a minute, or 28,800 an 8-hour
day...:-)