Photo contests are also a great way to involve your followers on Instagram and to engage with your business online as well. Using Facebook is an easy way to integrate RSS feeds and hashtags so your followers know what to include when they share a photo through Facebook.
Not only will more people see the photos, but photo sharing competitions are also a good way to give those who take part in the competition a great prize, to show them your appreciation for them taking part in the contest and helping to spread the word to other followers as well.