The number of online display impressions in August surged to 112.1 billion - nearly nine percent more than in July, and the fifth consecutive month of increases - reports MediaPost, citing figures from Nielsen/NetRatings AdRelevance. Advertisers served 102.9 billion impressions in July - compared with 97.1 billion in June, 93.1 billion in May, and 91.4 billion in April.

MySpace's popularity with advertisers continued to grow: 12.4 percent of display impressions were on MySpace - nearly double its 6.3 percent share in May. Yahoo Mail accounted for 7.6 percent of online impressions, and MSN Hotmail accounted for 6.6 percent - both down from a year ago, when the former had a 7.8 percent share of impressions, and the latter had 8.3 percent.

Financial services ads accounted for 22 percent of impressions in August, up from 20 percent a year ago; web media's share fell to 18 percent from 21 percent a year ago; and retail goods and services accounted for 16 percent of impressions, up from 14 percent last year.