Kermit the Frog says it's not easy being green. Kermit is a pathological liar. Here are 10 social sites that make being green so easy for you and your friends, you'll have no excuses.
Hugg
Hugg is a Digg-like news site, where users submit and vote on the green-flavored news stories, and unlike many other read-submit-vote-comment sites, it seems to have quite an active community. And, for all you Diggers who still have nostalgia about the top user list, Hugg has one, so you can compete for the title of the most environmentally friendly Hugger.
RiverWired
A combination of a news aggregator and a social networking site, RiverWired fetches green news from over 200 sites and delivers them divided into four topic: do good, live green, be entertained, and be well. Registered members can also share photos and videos and discuss various topics with other members.
Care2 was one of the first really big sites to add a Digg-like section to their existing community, and they still seem to be going strong, with popular submitted stories usually reaching several dozen votes. Of course, there's a lot more to the site besides the section for submitting and voting on green news; from environmentally friendly shopping to sending e-cards and creating and signing petitions.
Zaadz
Zaadz is another social network aiming to change the world one step at a time. Their goal? Sustainable future. Registered users of the site can write a blog, add photos, schedule events and discuss with other members. Zaadz also lists cool books, eco-friendly businesses, and hosts videos. Another interesting thing about Zaadz is their devotion to being transparent; on the site you can, for example, find a detailed explanation of their business model and future plans.
Dianovo
On Dianovo, registered users get their own blog and an image gallery. They can also post events, as well as share and comment on content from other members. The company itself is 100% powered by solar power, which means that their servers will crash at nig...just kidding; it means that by participating, you're actively supporting a truly green social network.
FiveLimes
FiveLimes is a social bookmarking/networking site focusing on eco-friendly shopping. Registered users can add friends and exchange messages with them, as well as submit new products to the site and save the in their profile. Also, there's the MyCity feature which is a Google Maps mashup, in which users can add eco-friendly services and shops to the map.
Unlike all other services on this list, WorldCoolers is actually a desktop application, which lets you receive notifications and participate in online rallies. If you like, you can also receive alerts online through an RSS feed, or with the help of a Firefox add-on.
Common circle
Common circle is an eco-friendly social network, which offers quite a lot of features to its users: blogs, polls, classifieds, chatting and event posting are some of them. The look and feel of the site might be described as old-school, but it's quite usable, and the community seems to be thriving. And, just like Dianovo, the server the site is hosted on, as well the offices of Common circle are powered on renewable energy - wind and sun.
2People
2People is trying to fight global warming and achieve sustainability in one generation. The social networking features are quite basic: after registration, you can connect with others and form teams. Every team gets its virtual space, which has a forum and a workspace. Users can also monitor events, people and actions in their part of the world. The ultimate goal of the site is to connect a critical mass of activists who will create enough fuss about global warming that the governments will have to do something about it.
DoTheRightThing
Although not entirely oriented towards green and eco-friendly topics, one of the premises of DoTheRightThing is, well, doing the right thing, and that also includes being nice to the environment. The site itself is quite an original spin on the Digg-like concept: instead of voting on news items, users are voting on the performance and ethical standards (however subjective this may be) of companies and their actions.