some great sites with pets are:
guffins
bunny hero labs
others you may have to pay money for a REAL account like:
webkinz
animaljam
foopets
Some fun websites with free games are addictinggames.com, miniclip.com
There are many websites available with free virtual games. A couple of my favorites are http://www.kongregate.com/ and http://www.addictinggames.com/ .
There are many websites that offer virtual stock market games. The Wall Street Journal operates a very popular virtual stock market, that you can play for free.
Xivio.com is great! Its a 3D no download free virtual world!!! Here are some more games: Impressivetitle.uk.co wolfquest.org sifaka.com wolfhome.com
here are some: woozworld.com supersecret.com dizzywood.com allgirlsarcade.com stardoll.com chimpoo.com here are all of the free virtual websites i know about
There are many virtual stock market websites provide free market games for new stockers. I played virtual stock market game on marketwatc, which help me very much in my first stage stock life.
Free poker games are extremely popular online. They are so popular that websites have been developed for the purpose of listing sites that offer free poker, serving a virtual yellow pages directories for free poker games.
Virtual farm game can be played for free online at various of websites like silver games, amp games and big fish games. The game is a classic and inspired many new farm based games like farmville.
Xivio.com is great! Its a 3D no download free virtual world!!!
Nokia website or gallery.mobile9.com
Floorplanner
marapets