Along with mastering the New York City subway system, Girlawhirl can now maneuver San Francisco, Boston, Chicago and Washington D.C. with ease thanks to hopstop.com, her online guide to public transportation. Girlawhirl simply inputs where she is and where she wants to go right from her PDA and – voila – hopstop.com maps out exactly what trains/subways to take, and even how to get to the station in the first place. There are also options for riding the bus and walking routes.

Finding the best way to get from San Francisco's Fisherman's Warf to meet pals in Chinatown is no longer a worry. And if she's at a loss for a meeting spot – or hotel, store or spa – Girlawhirl can just check out the site's city guides.

Plus, to make getting around New York and its surroundings even easier, hopstop.com has also added info for Long Island, New Jersey and the greater NY Metro Area. So she can get from a pal's house in Connecticut to a meeting in midtown worry-free. And Girlawhirl's looking forward to the addition of Philadelphia, Seattle and Miami in the coming months.

Less time wandering means more time for exploring.

Click here to visit hopstop.com