Practice the 80/20 Rule
The 80/20 rule of social networking is simple: 80% of the content you publish on any given network should not be about you. Instead, it can involve your interests, content from other photographers or individuals, or anything else you feel the desire to share. Only a very small percentage of your followers will want to receive content that's exclusively about you or your photography work.
If you're having a hard time coming up with something else worth publishing, help out another photographer's work you admire by sharing it on Google+ (see Figure 6). Community development can play a large role in building a following on every social network.
Figure 6 Share the work of other photographers you admire. When you help someone else to get attention, your generosity will be noticed—and you might learn something.