Find inexpensive snow blowers at Craigslist.org, eBay.com and Amazon.com. Craigslist and eBay mainly list used models, with many available for free local pickup, while Amazon.com features mainly new models, typically with free shipping.
On the main page at Craiglist.org, click the city nearest you, and then click the For Sale heading. Type "snow blower" in the search box near the top pf the page, and then click the search icon to display listings. Refine your search with options on the left side of the page, such as maximum price. As of November 2015, searching Craigslist's Minneapolis site with a maximum price of $75 yields more than 100 listings, including a Toro 22-inch gas-powered snow blower for about $50 and a Craftsman 21-inch gas-powered snow blower for about $25.
At Amazon.com, type "snow blower" in the search box on the main page to display listings including a new Toro Power Shovel 7.5-amp electric snow thrower for about $99 and a WEN Snow Blaster 18-inch electric snow thrower for about $120.
At eBay.com, type "snow blower" in the search box near the top of the main page, click the search button, and then refine your search using the options on the left side of the page, choosing the make, brand, price and condition.