Michael Mahemoff is a web developer who writes about Ajax patterns, HTML5 apps, APIs, databases, and software practices.
HN links it for his best practices on mailing list unsubscription and his reviews of apps. The given comments give few opinions.
I wrote up some ideas on best practices for unsubscription recently, after trawling through my inbox to clear the clutter.
http://softwareas.com/best-practices-for-mailing-list-unsubscription
If you're doing one-click unsubscribe, a smart practice is showing a message with other ways to stay engaged, e.g. Twitter ... and providing a one-click undo (ie re-subscribe).
>html + js doesn't have a standard way to be shared outside a website.
Sure it does, just send an .html file. With the <script> and <style> tags and data: URIs to embed images, what more do you need?
Hell, you can even distribute sound: http://softwareas.com/offline-sound-no-flash-no-file
Anything similiar for the Android device available?
Edit: Also, for a nice rundown: http://softwareas.com/watch-it-later-a-comprehensive-review-of-four-instapaper-for-video-apps