Big data is proving to be an exceptional tool for effective business analysis. This can then be further used to define the marketing strategy. Business consulting has come up with some ways in which such data us changing business. Big data is boosting business efficiency. Buying patterns and user behaviours can be tracked thus driving current businesses. This big data is even providing marketers with forecast for future business trends. Geo-targeting is facilitating actual financial collections. Metrics which must be tracked include- email open rates, click through rates, social media engagement, views/shares/comments on blogs, surveys, Google Analytics reports and coupons enabled for digital marketing.