Silicon Alley Insider in Wednesday’s post "How Google Can Make Money With Google Wave" is bringing up a point about online advertisement very much like the kind I have been making for at least the last 6 months. Here the key excerpt (my BOLD highlights):

Semantic advertising. [...] Since conversations on [Google Wave] waves have to [...]

Microsoft’s indirect attempt at a youthful social networking site, Wallop, is packing it in after 2.5 years as a venture-backed spin-off company.
And one thing appears to be clear: Regardless of the merits of the technology and features behind the platform, Wallop never had much of a chance of succeeding during the same time frame in [...]