Lately I've been trying to find ways to make my blog less obtrusive, and yet more interactive.
The best solution I have found so far, is the Skysa Bar. Skysa is a website that allows you to create a customizeable toolbar for the bottom of your websites. The bar is fully customizeable you can add your own apps to it and really do alot with it, it allows your users to use your site socially, it has amazing features for sharing parts of your website to friends it's quite crazy.
There are apps for chatting, IMing, Games, Twitter... tons of apps.
Personally I suggest giving it a shot, because I've noticed it has made my blog less of a talk at my users site, versus an interactive smooth easy to navigate website.
The bar allows your users to make accounts on the bar for your website, that's one downside I kind of see, because I don't know how many people will be willing to just create an account to use the bar but it so far is pretty nice and has great features. If you are one of the many who actually visit my site rather than using a rss feed reader like Google Reader. You may have noticed my website has the bar on the bottom, and you may also have noticed the polls that I've been posting to my readers.
Anywho I suggest you give Skysa a shot, let me know what you think of it.