No Inflection Point for Interactive Media, Yet

Nothing is going to replace search advertising as the top interactive category, just as nothing appears able to dislodge display advertising, between now and 2014 or so.

And though interactive advertising is growing, it will not displace offline alternatives, either.

By 2014, all interactive channels together will account for about 21 percent of total ad spend.

That is not to say greater changes are unlikely. One of the enduring lessons of "disruptive" change is that there is a sometimes long gestation period before an inflection point is hit. Then the change goes non-linear and vast changes can occur very quickly.

Nobody knows yet if that is what lies ahead for advertising. But it bears watching, as 2009 seems to have marked something of a watershed for print media, for example.