Lots of strange IP addresses in my Windows Firewall logs. Concern?

Lots of strange IP addresses in my Windows Firewall logs. Concern? Was trying to debug a Samba sharing issue with Mac OS X so I turned on logging for my Windows Firewall. I didn't expect a lot of conections but the thing filled up quickly. Here's a sample:
Asked by: Guest \| Views: 339

Total answers/comments: 1

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Guest [Entry]

"From the log you have shown, it looks like standard port 80 outbound connections to 212.96.161.238. I don't see any problem there, as it looks like its from your machine, here is a whois: http://www.ip-adress.com/whois/212.96.161.238 looks like AVG updates?
http://www.robtex.com/dns/update.avg.com.html (notice the ip in the list)

I don't see any concerns there, unless you have more logs showing something else, I wouldn't worry about it, standard TCP traffic."