Buffer is gaining immense popularity in the social networking market. The service provides you the ability to share multiple links (or updates) in a short period of time but they are queued up and delivered in batches.
The idea is to not overdo sharing which might annoy your followers and it seems to be working well for a lot of their users.
Buffer currently support sharing on Twitter and Facebook. The company has just revealed that they are working on adding new features and soon enough you would be able to post to Google+, LinkedIn and Pinterest.
Google Plus support would be interesting as Google still has not made it very easy to share from third party networks. LinkedIn is pretty popular amongst the professionals and Pinterest is also gaining popularity as a social sharing platform.