A tool that can help you search for the font used in a specific website and find similar fonts.
FontAwesomePS
A plugin tool that adds a search panel in Photoshop, allowing you to search for icons by typing "mail". The relevant icons will appear for you to select and open directly in your Photoshop.
Lorem Ipsum Generator
A generator for fake Chinese and English characters, when drafting proposal drafts, you don't need to type a bunch of ugly xxxxxx and paste fake text to be closer to the finished product,
which can increase the success rate of proposal approval.
Instagram Filters
Instagram, commonly known as IG, is the most popular photo-sharing social media now. Many hipsters love using it, and its photo filter effects are very beautiful, every photogenic person likes it. A genius overseas made these effects into Photoshop actions, you only need to execute the action, and you can quickly change the style of the photo. It's one of the essential tools for lazy people (or a pick-up-girl photo editing tool).
Free Images
This website provides a diverse selection of free image downloads, and there are also some paid image libraries available for purchase. Rarely, there is a categorization function which is uncommon among other free image library websites.
Mock Up Zones
The website "Mockup Zone" on behance provides many business image templates including PSD files that are available for download and application.
Greyscalegorilla 3D Tutorials
This website provides a wealth of 3D courses and excellent creative work sharing.
Vray Materials
When creating 3D, you need to put textures on 3D objects to render a realistic image. Vray Materials provides a lot of texture materials for download and use.
AdobeKnowHow
A well-known drawing software company Adobe offers online instructional resources, where you can learn the latest techniques and skills from many masters.
Update as of 2021.0118: It appears to have ended service QAQ
Moveast
A foreign person, just like Jiejie, releases their own photos that they have taken, allowing everyone to download and use freely. Although the quality of the photos is not very high, they are definitely sufficient when used on websites.
Pixeden
A website offering templates and UI downloads, and even plugins, with a clean and user-friendly interface.
Tuts+
A wealth of Photoshop and Illustrator skills tutorial courses, ranging from beginner to advanced, that can be learned on this website, regardless of whether you are an experienced user or a beginner.