- Don't ignore Google+. It's a great social network, and it
performs better than any of the others in search.
- Don't limit the length of your post too much. Google+ allows
for 100,000 characters.
- Use images to the maximum degree. Google+ uses the same
meta-tags that Facebook does. Make sure they are right.
- Consider using images posts when appropriate.
- Add markdown to your post to make it more visually
pleasing.
- Google+ has an excellent implementation of #hastags and +users.
Use them!