We are often so focused on earning more money that we fail to realize that saving more on everyday purchases such as groceries may have the same effect as getting a raise. See this "spreadsheet of savings"for details
This is one of a few legitimate survey sites. We were able to earn a $5 Amazon gift card within a few days. Some of the surveys are long (20 minutes to an hour), but you are rewarded with points which translate into more gift cards.