Boston-based Twitter unit Crashlytics has launched a new mobile app development tool, BetaBoston reports.

Mobile app firm Localytics has moved its headquarters to Boston's Financial District, where it expects to hire an additional 40 workers by year's end, the Boston Business Journal reports.

Benched Red Sox sideline reporter Jenny Dell officially leaves NESN, the Boston Herald reports.

Mobile ad tech firm SessionM is partnering with popular Japanese e-commerce site Rakuten, the Boston Business Journal reports.

RBM Technologies has hired former Mobiquity executive Ken Sonberg as its new chief technology officer, according to the Boston Business Journal.

Florida-based Halifax Media Group has agreed to buy the Boston Globe's sister paper, the Worcester Telegram & Gazette, according to the Globe.

Ad tech startup Evergage has raised $4 million in a Series A funding round, according to BetaBoston.

WCVB Channel 5 is reportedly attributing a recent ratings drop to glitches in Nielsen's demographic sampling data, according to the Boston Herald.

Ad tech startup Adelphic is gaining traction in the mobile ad space with its predictive modeling technology, BetaBoston reports.

The former CMO of analytics firm Visible Measures will head up business development at mobile tech startup SessionM, according to the Boston Business Journal.