Were you hit by one of the most recent algorithm updates such as Penguin? Then be prepared for a long uphill battle. Algorithm penalties are different from a manual penalty as you will need to start removing over-optimized anchor text links and low quality links. On average you can expect 2-3x as much work as those that received a manual penalty. Due to the nature of Google’s scale algorithm updates do not have the option to file a reconsideration request. Which means you must proactively remove as many toxic and over-optimized links as possible. Read more on how to recover from an algorithm penalty here.