Unlike other links in Marketo emails, View as webpage is not tracked as an email 'clicks.'-- How come?
I found this conversation that might help: Tracking clicks on "View as a Webpage" link
I haven't tried this myself, but you should be able to pull a list of clicks using the following Smart List filter:
That said, I'm not sure if it shows up in Analytics.
Good convo, thanks for sharing Jennifer!
I'd be curious as to it's appearance in GA as well...