Be more focused is my own rather undemanding resolution and reducing the number of accounts I'm using seemed like a good start. Over the years I've tried out quite a few services and have invested quite a lot of effort into some of them. But now it's all become a bit of a muddle and I think this is reducing how much I share.
However, this turns out to be quite a big job. In fact I haven't got beyond creating a list of the main things I do:
Status updates/bookmarking: Twitter (personal and professional accounts), Yammer (behind firewall), Facebook, delicious, Posterous
I had been using Ping to post updates selectively to many of these but I am now using Tweetdeck so intensively that this doesn't really work for me any more.
On bookmarks, I really like the Posterous approach with the option of including images but I've invested a lot in delicious and I like their tagging approach.
Ideally, I'd like one TweetDeck style dashboard with the option to post to all these networks. I'd also like to be able to add a graphic for Posterous posts and to tag those up and my delicious posts.
I'm assuming this doesn't already exist but there must be many people like me who need help in maintaining different streams.
Photos/Video: Flickr, Twitpic, YouTube, Motionbox, Geni (family)
It still bugs me that I have to upload some photos twice. The same goes for video. is there not a universal image uploading service yet?