Warning: this article is OUTDATED (written 2011-2012), it no longer reflect current situation. Live Messenger was discontinued in 2013 and users transferred on the shitty Skype, Yahoo Messenger was also discontinued in 2016, leaving only Google Talk.
Product reviews
Comparison: Imageshack vs Photobucket vs Picasa
Warning: this article is outdated (written in 2011, last update 2013), it no longer reflect current situation.
Octoparse review – do-it-yourself data extraction tool (web scraping)
After days of learning, Octoparse allowed me to create new databases by scraping websites that require user to click buttons or enter text, which was not possible with Import.io, but I had also projects done with import.io that cannot be done with Octoparse.