As a General Rule - don't View Websites of Members unless you see they are genuine.
If you see there is a New Member - don't go check out their Website.
If they post and it looks like they are a TMX user, then hover over the link for any webiste and check what the name of the site is down in the bottom left-hand corner (usually) - avoid "geocites" sites.
make sure that you have Anti-virus software up to date and Firewalls activated.