A successful website:

Pinterest is an American image sharing and social media designed to enable saving

and discovery of ideas on the World Wide Web using images and, on a smaller

scale, animated GIFs and videos, in the form of pinboards. 

It is appropriate for publishing daily photos and visual artworks. The users can share their images or getting inspiration from this website. The pages are mainly based  on images, surrounding with plenty of blank space. The titles are clear and easy to read. Once the users type keywords in search area, they will pinpoint the related images. When the users click on the search button, some ideas related to their previous research will be recommended automatically. I will rate the memorability of this website highly due to this function. It is quite simple and efficient for users to browse ideas. However, if you want to get fully accessed, you have to sign up for an account and remain logged in. It decreases the efficiency to some extent.  

If you click on the user button, you will go to the Boards/Pins page. It allows you to view the pins you saved and posted. It is clear and well categorized. 

Pinterest has very clear and tidy layout. It does not have pop up ads, therefore the users will not have mis-click errors. I personally enjoy using Pinterest to search design ideas. Most of resources seem to have high qualities. It gives me high satisfaction. 

This is the mobile version of Pinterest.

URL: www.pinterest.com

A less successful website:

I choose a Chinese website named QianTu. First, the layout is a bit more crowded than Pinterest. There seem to have several navigation sites. The posters in the middle are changing and taking turns all the time. It gives a feeling of too much information. It decreases the learnability of a web. 

If you click on Illustration bar, you can see a more categorized navigation site, which helps you to filtrate information. It increases the efficiency to some extent.

If you want to download an image, you can just click on that. Then you need to sign up before you download, which is similar to Pinterest. There’s an ad bar appears on the bottom of the page, which decreases the satisfaction. Besides, all the resources in QianTu seem to be finished artworks or template.  Most of the free downloading resources have low qualities. I will only use them for inspiration, but not materials. 

URL: https://www.58pic.com