Fast approaching a taxing time of year, financial services marketers accounted for 28 percent of all online impressions in February, up from January's 22 percent, writes MediaPost, citing new data from Nielsen/NetRatings AdRelevance. Overall, online marketers served 141 billion display ads last month, 2 percent more than in January. Retail goods and services marketers accounted for 17 percent of impressions, compared with 16 percent the previous month.

E-mail sites accounted for 38 percent of all online impression dollars, up from last month's 35 percent and last February's 20 percent. MySpace remained popular, with 12.5 percent of all impressions, up from 10 percent in January.

Telecoms purchased 15 percent of all online ads, with Vonage accounting for 45 percent of those, Verizon accounting for 15 percent, and Bell South 11 percent. General community sites accounted for 15 percent of impressions, up from 7 percent last year; portals and search engines claimed 10 percent, down from last year's 17 percent.