The following Google Apps Script will display the unread Gmail counter for your mailbox to anyone on the Internet with a simple URL.
This Google Apps Script will sift through your Gmail account and extract email addresses of senders which are then saved in a Google Sheet.
The script will save Gmail attachments to Google Drive and because Drive supports OCR for images, you can then search for text inside these images.
You can embed a part of YouTube video using the YouTube Player API.
This explains how you can embed YouTube videos using the Google+ approach – only the video thumbnail is loaded along with the page and the actual player loads when the user hits the play button.
I am working on a little project that parses the JSON feeds of iTunes and imports the categories into WordPress.