In November 2002, he worked as a part-time minister, a custodian for an online department store, and a casual laborer. Rowse started LivingRoom.org.au, a blog about living in Australia; religion (mainly the emerging church movement); politics; and other topics that he found interesting.

Rowse is a co-founder of b5media, the blog network he founded in September 2005 with fellow bloggers Jeremy Wright, Shai Coggins and Duncan Riley. The blog network claims to have over 300 blogs, and one of the largest new media networks in the world with one million page views a day in 2006.

In 2006, Rowse was awarded the Best Web Development Weblog blog award in 2006 for ProBlogger.

Rowse was named in the Forbes Web Celebrity List in 2007.

In 2008, Rowse co-authored the book ‘ProBlogger: Secrets for Blogging Your Way to a Six-Figure Income’ (Wiley) and founded TwiTip—a blog dedicated to Twitter tips. He also has a Twitter page. Rowse is co-founder of the Third Tribe and founder of the Problogger Paid community.

In 2011, Rowse was a speaker at the Blogopolis blogger conference in Melbourne.