The Media Web Part only works with items stored in libraries within SharePoint; so it's not going to work with things stored in the cloud or on YouTube.

You have a couple options. From a server architecture perspective, your server admins can configure RBS (Remote Blob Storage). This would store binary objects (i.e. files in libraries) [...]

Elliot – I’m not in a position where I can test it, but did you try using instead of ?

pkondhare – I may be able to help you, but you haven’t fully explained your requirements. For example, what is the maximum length of the allowed input? When you say it can contain 0-9 numbers, I interpret this to mean that it’s field where the user can be empty or it can be 9-digits long. [...]

How Simultaneous Editing Works with Office Web Apps: http://info.kraftkennedy.com/blog/bid/102003/

snowiboy – I decided to write a new blog post in this series to answer your question. You’ll find it here:
http://sharepointsolutions.com/sharepoint-help/blog/2012/03/how-to-validate-a-non-required-column-in-sharepoint-2010/

Wow! I never expected to write so many posts about Column Validation. Yet, here I am with the 5th post in what has become a series about Column Validation. Just to recap, here are the links to my previous posts on Column Validation:

•  How to Validate a Due Date in [...]

Information about URL maximum lengths:
http://technet.microsoft.com/en-us/library/ff919564.aspx#limits

I didn’t originally set out to write a series of posts on Column Validation in SharePoint 2010, but I keep thinking of new challenges each time I do. I have no idea how long this series may go (in fact, this may be the last one), but this is the third in the series. Here [...]

Yesterday I showed you how to use Column Validation to validate Social Security Numbers, Phone Numbers, Employee Numbers, Part Numbers, and other things with strict formatting. Today I’m going to expand on that idea by showing you something more complex—we’re going to validate that an acceptable email address has been entered.

The [...]

We often need to ensure that users enter text information in a specific way. For example, perhaps our company uses part numbers such as TL-1400 and RW-1555. Every part number begins with two letters, followed by a dash, followed by four digits. Or perhaps we use Social Security Numbers in SharePoint (if you do, I’m [...]