Viewing Wi-Fi Details in Snow Leopard
In Snow Leopard, hold down the Option key before clicking the AirPort menu. Doing so reveals additional technical details including which standards, speeds, and frequencies you're using to connect, as well as what's in use by other networks. With the Option key held down and with a network already joined, the AirPort menu reveals seven pieces of information: the PHY Mode, the MAC (Media Access Control) address, the channel and band in use, the security method that's in use, the RSSI (Received Signal Strength Indication) measurement, the transmit rate, and the MCS Index. In Leopard, some, but not all, of these details are revealed by Option-clicking the AirPort menu.
Submitted by
Doug McLean
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Google Shows You What It Knows about You
With the new Google Dashboard, Google has taken another step towards transparency about how it uses all the information it collects about you and which you give it to store. The single location shows a summary of data stored for most services Google operates associated with a particular account of yours (I have two for structural and historical reasons).
Each service shows a summary of top-line information, such as the various email addresses associated with a Google Account or settings for your Google calendar, and then links to management features and the privacy and/or security policies for the service.
While this doesn't address all the issues about the mammoth amount of data collection and storage Google undertakes, it's a nice way to see at a glance what we've let the company do - and, with a few clicks, wipe some of that information off its books.
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http://www.google.com/support/accounts/bin/answer.py?answer=162743
Very useful to know about this.
I find the web search history to be very very useful, when I remember to use it.