Updated 28 June 2013: both Evernote Web Clipper and Powerbot have new versions, the table refers to these new versions.
In the creation and development of the Google Apps script to send Gmail messages to Evernote, I have looked around what other tools are available. These are the other tools that I found:
- forwarding to the Evernote email address and using the InQloud service;
- the Evernote Web Clipper (only tested on Windows/Chrome);
- PowerBot, an extension for Chrome (also others versions available, e.g., for Firefox and Safari)
- IFTTT and Zapier, tools that enable you to connect between other web services
I have looked at how well these tools keep the formatting of the message, whether they keep attachments, have a link back to the message in Gmail, whether they can be automated using Gmail filters, and whether you can select the notebook or tags, and edit/comment on the message before sending.