Industry Moves: Callaway Digital Arts; Twitter; Shazam

Here is a roundup of some of the latest executive-level hirings and exits in the world of mobile and digital media business…

Callaway Digital Arts: The interactive mobile apps developer expands its management team: Lisa Holton is VP of content development, Caryl Shaw is executive producer and Joe Ghazal is VP of engineering. No stranger to publishing, Holton was most recently president of scholastic trade publishing. Shaw, who will now lead conceptual and design efforts, was previously executive producer at ngmoco. Software enginering veteran Ghazal was previously COO and VP of engineering of Kontiki.

Twitter: Two Google (NSDQ: GOOG) birds hired with one stone – Google Asia display ad sales head Shailesh Rao is joining Twitter as international revenue VP from San Francisco, while Stephen McIntyre joins from Google’s international self-serve ads team in Ireland to direct Twitter’s soon-to-launch self-serve online sales and operations from Dublin. Via AllThingsD.

Shazam: The audio-ID app names former AOL (NYSE: AOL) and sales executive Miles Lewis (pictured) its new UK and Europe ad sales VP – an indication it wants to do more advertising inside its free Shazam app and to encourage marketers to Shazam-enable their TV ads.