Jason Kottke recently redesigned his site. His analysis is interesting to read for anyone who has done the same for their site. Here is what he said on attempting to make his site's Twitter stream a little more engaging.
One of the small changes I made was to stop using post titles for posting to Twitter. I had hoped that using more descriptive text would make the tweets more easily retweetable...look at this tweet for example and compare to the title of the post it links to. This hasn't really happened, which is surprising and disappointing.
And, this about Tumblr.
That big Tumblr increase was due tokottke.org's new Tumblr blog. Having kottke.org posts be properly rebloggable is paying off. In addition, it's got over 800 followers that are reading along in the dashboard. I'd like to see that number increase, but I'd probably need to engage a bit more on Tumblr for that to happen.
I don't know what Jason is trying to gain by having a Tumblr blog for Kottke.org - besides the same benefits of having a Twitter stream or RSS feed - but as most of you probably know I gave up on getting engagement on Tumblr.
For the most part the Tumblr crowd seems a click-happy bunch. If they can't click a single button to engage (like, retweet) they won't do much else. So long as you can figure out a model that works within those constraints I suppose it could end up paying off.