For videos/movies/tvshows :

intext:"Search Term" intitle:"index.of" +(wmv|mpg|avi|mp4|mkv|mov) -inurl:(jsp|pl|php|html|aspx|htm|cf|shtml)

Images :

intext:"Search Term" intitle:"index.of./" (bmp|gif|jpg|png|psd|tif|tiff) -inurl:(jsp|pl|php|html|aspx|htm|cf|shtml)

Music :

intext:"Search Term" intitle:"index.of./" (ac3|flac|m4a|mp3|ogg|wav|wma) -inurl:(jsp|pl|php|html|aspx|htm|cf|shtml)

Books :

intitle:"Search Term" (pdf|epub|mob) "name or title" -inurl:(jsp|pl|php|html|aspx|htm|cf|shtml)

You can also find google drive shared files similarly.Shared foldersShared everything Works with other domains too.

Some info about google search operators can be found here

Here is a small tutorial on how to use shodan.

similar search engines

(not sure if it should be here)

/u/krazybug occasionally posts a lists of working opendirectories (ODSHOT) and open calibre libraries (CALISHOT) (used by some search engines above). You can use this list with googles custom search engine and make it search within that list. Here is a tutorial on how to set it up.

Save the following code as a bookmark, then you can open the bookmark to run the desired action.

Download all files with a specific extension :

javascript:!function(){var%20t=prompt("Enter%20filetype%20to%20download%20(format:%20.mp3)");if(null!==t)for(var%20e=document.querySelectorAll('[href$="'+t+'"]'),o=0;o<e.length;o++)e[o].setAttribute("download",""),e[o].click();else%20alert("No%20format")}();

Resize "Filename" column in OD to make entire filename visible :

javascript:!function(){function e(e){var o,n,r=e.href;e.textContent=(n=(o=r).split("/").filter(Boolean).reverse()[0],console.log(n),o.lastIndexOf("/")==o.lenght-1&&(n+="/"),n=n.indexOf(" ")>=0?decodeURI(n):decodeURIComponent(n))}anchors=document.body.querySelectorAll("a"),anchors=Array.from(anchors).slice(1),anchors.map(e)}();

Display pictures as thumbnails :