(MediaBuyerPlanner) 1105 Media last week acquired Stevens Publishing, an 80-year-old company that publishes eight b-to-b publications including Environmental Protection, Occupational Health and Safety, Security Products and Water & Wastewater Products, BtoB writes. Stevens also publishes seven newsletters covering environmental news from Washington, D.C., and online buyers' guides and list services.

Last week, 1105 Media acquired 101 Communications, a b-to-b publisher focused on the IT market, for a reported $75 million. 101 Communications - which publishes 11 publications including Federal Computer Week, 35 enewsletters, more than 20 websites, and nearly 45 annual conferences and events - saw revenue increase by 10 percent last year.

1105 Media is a new b-to-b media "rollup" firm formed by Nautic Partners, Alta Communications, and Neal Vitale, according to paidContent.org.