Nothing that can harm you as far as I know, however it's annoying when you want to track success of a single video across many channels as all counters are adding up to a general number of views/likes/shares/comments...etc. This can prevent a potentially viral video from reaching its critical mass, at the other hand however, it gives a wider number of entry points for different types of users.

Very good point about updating WP promptly to avoid security holes. It may not be the hosting company at all.

Alan, Christine is looking for a host for a wordpress site. discountasp (.NET hosting) doesn't strike me as the right choice.

Our WP site has been hacked just about on every possible host and platform from shared to dedicated server. Entry points were different, sometimes through entire server, sometimes via plugin weakness. We're thinking about Amazon right now, still undecided as one of our staff gravitates towards hosting the site on our own box in the office.

PS: Found this presentation: http://blog.rochenhost.com/2010/06/joomla-and-wordpress-hosting-and-security-presentations-cms-expo/ I haven't heard of this hosting company before but anyone who is presenting on wordpress hosting security must be worth investigating further.

Here's a dead obvious advantage of YouTube over Vimeo:

• YouTube profile page link is dofollow.
• Vimeo profile page link is nofollow.

Why is this important? Because PageRank flows to those pages internally and from other sources and in Vimeo's example it doesn't pass any love back to the author.

Exactly, and what I also try to explain to people is that privacy policy type page is additional signal for Google when they try to understand the type of site you are and how trustworthy it is. Why in the world would you noindex something like that?

It could be the case of different browsers hitting different data centres which have not yet consolidated their rankings.