It looks like online ad sales have surpassed radio’s share of ad budgets for the first time. TNS Media says the Web received 7.6% of marketing budgets last year, compared to 7.2% for radio. Figures are based on network, national spot advertising, as well as 34 large and medium markets. TNS data shows online gains have come at the expense of not just radio, but also newspapers, which saw its share fall 1.1% to 17.7%. National TV still gets nearly one-third of all media spending.