Bed&Breakfast Marisa
Piazza Garibaldi 13
(http://www.bed-and-breakf...). nice family-house b&b in monterosso.
Da Baranin B&B
(http://www.baranin.com/). provides rooms with b&b treatment and apartments in manarola.
Campgrounds
campgrounds
Other campsites can be found south of La Spezia and further north around Deiva Marina. Levanto is a better option though because it is serviced by the park-run train service connecting all five villages as stated earlier.
It's advisable to try to book in advance when arriving in late June, July, August since these sites tend to fill up quickly during that period. Many hotels, including the hostel, book up in months in advance.