Quick article quoting some Internet "experts" on their views on the correlation between technology and intelligence.
I agree with one of the commenters: as an engineer, I want to see studies and qualitative results, not just opinions.
[Edit] Bonnie points out that a better question is the difference between logical and emotional thought and technology's impact on those two, as well as abstract reasoning.
[Edit] Apparently the Internet is making us smarter: http://www.dailytech.com/Report+Internet+Use+Makes+You+Smarter/article17749.htm