When it comes to purchase stock, there are two methods: through a brokerage and through a DRIP and/or DIP plan. The use of a brokerage is a highly popular method by which to purchase stock. There are two types of brokerages: full-service and discount. Full-service brokerages provide market analysis and expert advice in addition to the brokerage service. Thus, commissions are typically higher for full service brokerages. Discount brokerages on the other hand, do not provide any investment advice or market analysis and charge a lower commission. DRIP and DIP stand for dividend reinvestment plans and direct investment plans respectively. Both plans essentially allow companies to sell their own stock directly to investors for a low fee.