Two observations:

- X-FRAME-OPTIONS: IMO, more people should know about and use this.

- Adroll: Would be much more effective if it didn't keep showing me ads for products that I already use. I wish it had an opt-out so I'd quit seeing the same ads over and over again everywhere I go online.

P.S. I know others balk at the pie charts (for good reason), but for me it's irrelevant. I go straight for the numbers and the charts add a nice visual break so that it doesn't look like a wall of text. So at least they have that going for them. :-)