Research firm TubeMogul has found that the biggest moneymakers on YouTube are major music labels followed by the videogame program Machinima, reports Business Insider.  TubeMogul measured the daily share of what it calls monetized views on YouTube, comparing the audience draw for ad-carrying content among the site’s top 100 most viewed videos. It found that videos released by music labels Universal, Sony, Hollywood Records and EMI top the list. The fifth highest ad revenue generator is the videogame editorial program Machinima, although with a much smaller share than the music labels.

TubeMogul says nearly four percent of all daily views on YouTube are for content from Universal and Sony music. Business Insider points out that the two labels are joining forces to launch their own online content channel Vevo.