Search and tech security experts are following Google’s announcement that it has now matched Microsoft’s and Yahoo’s recent moves to integrate Twitter entries into search results. All three search services are also moving to incorporate Facebook results into search results in near real-time.

Spam messages and infectious postings continue to infest social networks. Spammers and hackers are very enterprising. Some trick the search engines into giving high rankings to infected websites they control. Others continue to come up with new ways to spread spam and tainted postings via the top social networks.

“Even if the initial barriers work, don’t expect clean results,” says Roel Schowenberg, senior researcher at Kaspersky Lab. “It’s likely cybercriminals will find ways around them.”