CNET.com is a popular software review site, with lots of good “free-to-try” software. The site is also safe to download from, since they ensure that there is no malware in the downloads.
Here is a snippet from Wikepedia.com:
CNET provides product reviews and prices, software downloads, and tech news.”
If you are just looking for information to download the most popular anti-spyware/virus software, you can download Spyware Doctor. It is the most popular free-to-try anti-virus, according to Cnet.com.