Thanks to Johnny Beirne for educating me on some aspects of properly managing both your personal and Business Page Facebook Logos and Thumbnails. Your Facebook Logo/Photo appears top left (in the current Facebook layout!) of either your personal profile or your company page. Facebook also takes a thumbnail portion of this logo to put beside each of your status updates/posts. The logo can be a max of 200px wide by 600px high so it makes sense to use the full size to get as much info in as you can, particularly on your business page. Be aware though that the longer the logo is, the more it will push down the info below it which would normally include your bio info and website links.
The trouble with these logos and thumbnails is that while the logo can be 200 x 600, the thumbnail that Facebook auto crops for you can only be 50 x 50 so the chances of the thumbnail not looking exactly as you’d like it are quite high! This thumbnail is all over Facebook if you post a lot so it might be worthwhile making sure it looks decent. You have a small bit of control over the thumbnail content. Once you’ve uploaded your new logo, hover over it and you’ll see a “Change Picture” link. When you click this you’ll see an “Edit Thumbnail” link that allows you to drag and select the best 50 x 50 portion of your logo for use as your thumbnail.
What Johnny pointed out is that if you purposefully design your logo to take the thumnail into account right from the start you can kind of engineer it to look good as a thumbnail. Johnny suggests designing your logo with a 200 x 200 ‘box’ at the top into which you put your main company logo or symbol, which should be smaller than 200 x 200, ie – with white padding around it, possibly about 150 x 150 or 175 x 175. Now when you upload this logo and click “Edit Thumnail”, you should be easily able to select a nice uniform portion for a thumbnail instead of grabbing a bit of text too, etc..
My own logo isn’t really suited to this as it’s not square so this may not work for everyone. Here’s mine and Johnny’s Facebook pages so you can see how we’ve done things: