Google Ventures entrepreneur-in-residence Craig Walker is separately looking at returning to his VoIP roots when he founded the company which becam Google Voice.

Google Ventures, the corporate venturing unit of the US-based search engine company, has taken part in the $1m round raised by traveller community Triptrotting, which helps backpackers hook up with like-minded people to go to sites like Machu Picchu in Peru (pictured).

Google Ventures was joined in the series A by venture firm WI Harper Group and angels including Mark Suster, Dave McClure, Bill Gross, Safa Rashtchy and Eric Chen. The deal takes the company to $1.3m raised to…