Google+ Introduces Communities
Currently, everyone is talking about Google+ communities. This feature allows you to create public or private membership communities, much like a LinkedIn group. The community allows for discussion threads and integrates with other Google+ features, like Hangouts. Mobile functionality for communities will be coming soon.
LinkedIn Advertising Gains More Tools
LinkedIn has introduced New Ads API – this will allow developers to build custom tools and solutions, meaning that we may be able to get more information out of advertising in the future. Currently, this is only open to a select group of partners, but is worth keeping an eye on.
Tumblr Breaks into Top 10 Sites in the US
This may mean that Tumblr is worth watching as a site for activity in the future, if trends in the UK follow the US.