Challenge 8: Website hints

Here's a good one for your personal use:

Retailmenot is a website that collects coupon codes for online retailers, saving you money when you shop online. Users submit codes for websites, accompanied with a description. The site allows you to mark codes that no longer work, and the "success rate" meter below each code tells you how likely a code is to work for you. You can search sites by categories and tags, or by the site's internet address. Not all sites are available, and retailers can request to be removed from the database. However, many sites are listed here, even if they only list the retailers' "official" coupon codes. Worth a look.

Bonus link:

There was a time when many websites (especially newspapers) required users to register before reading the site. The front page would provide headlines, but actually reading the article would require you to provide your name, age, email address or even your zip code. These were "needed" in order to provide the site (and their advertisers) with information about the sites users. The people who created Retailmenot also created Bugmenot, which provides "public" accounts to help users bypass this compulsory registration. Many sites have moved away from compulsory registration (in fact, I browsed through several sites I remember having compulsory registration, and I couldn't get any of them to ask me to register anymore), but Bugmenot will help if you do run across one of these sites.

Your Challenge:
In your blog, answer some questions for me.

Have you ever come across a website that required registration? Would you use Bugmenot, or just register? Why or why not? Would you recommend the Retailmenot site to a friend? (The subject of online shopping may never come up with patrons, but I'll bet you have a few friends who might want to know how to get coupon codes for free.)