I've started using Google's mail service lately to aggregate all my mail.
I'm past the debate of whether I trust Google with my data or not simply because if something is important to me I'll store it offline and online. A key challenge for Google is earning and keeping your trust, I reckon the millions they spend trying to retain my trust will be more investment than I'm ever likely to make against my personal data. However that's another debate...
The aggregation feature is very useful to me. One site, all my mail, any PC. Very smart.. However I missed some of the useful features within Outlook that I used to quickly manage mail.
In Outlook from the main view you can select a mail item with the mouse, then hold down SHIFT, select a mail somewhere below it and release SHIFT. This selects the two mails you selected and all the mails inbetween. Very useful in clearing out dead mails I know I don't want.
Google employs a tickbox against the mail.
The subtle part I just stumbled upon... Google has implemented a client side script to mock this behaviour. Select a mail with the tickbox, hold down SHIFT and select another mail far below it. All the mails inbetween are selected!
Very smart, very useful, but a shame that it's not more obvious. Well done Google!
Now, the only problem left to solve is that age old chestnut of having passwords. Need to get rid of them, they are a fantastic security hole for the Google strategy.