Make her a profile on adultspace.com
Here is my wife's profile:
The hyperlink is visible to registered members only!There is a chat applet, but we don't use any IM at all. So many guys request chat and web cam that it is overwhelming. She likes to communicate with simple private messages back and forth. Have your wife send her a message, and I will encourage the two of them to talk.
Other options are xtube (we are on there as bellalicious4). Myspace is very popular - keep everything PG-13 or you'll get deleted. You can also make craigslist ads that reply to an email you set up for her. All of these are free ways to pimp out your wife!