If your website or blog recently hacked then its better check if its have hidden links and text. Major search engines including Google consider hidden links and text contain web sites as spam. Finally you will be ban. There are few methods to identify hidden elements in your site.

If you want to uncompress your archive files online before download them or archive files in your computer. Now you can do it more easily. There is a web based online service that let people to uncompress files via URL or uploading.

Normally when we are downloading files in internet we can not scan it for malware. However now you can scan downloadable files before download using Dr.Web linkChecker. This is a free web browser plug-in and it support major web browsers such as Firefox, IE, Chrome, Opera, Safari.