To mine bitcoin you need Application Specific Integrated Circuit (ASIC) equipment that has been made just for mining bitcoin. The smaller USB miners are great for learning, but you'll only mine tiny amounts of bitcoin. To mine at a larger scale you'll need better equipment, for ideas take a look at the mining gear on
http://www.dogiecoin.com/. You can find mining equipment used on Ebay and Craigslist, as well as from various resellers or direct from the manufacturers (like Bitmain, see
https://bitmaintech.com/product.htm). Setup your mining gear to mine bitcoins with the pool of your choice, I have used
https://ghash.io/,
http://eligius.st/~gateway/ andhttps://bitminter.com/. If you want to go for the all-or-nothing lottery approach you can solo mine using
http://solo.ckpool.org/. As you mine bitcoins, have them sent to your bitcoin address and use whatever wallet you chose, I have used
https://multibit.org/ and
https://blockchain.info/wallet. You can then use the bitcoins to buy things online, or if you want to sell the bitcoins either use a broker service like
https://www.circle.com/ or
https://www.coinbase.com
