Since you were asked about blogs I can recommend some sites to start and some blog publishers as well.
Websites: W3Schools Online Web Tutorials, GeeksforGeeks | A computer science portal for geeks, Java - Object and Classes (tutorialspoint.com)
Blogs: Better Programming (medium.com), David Walsh Blog - JavaScript Consultant, CSS-Tricks - Tips, Tricks, and Techniques on using Cascading Style Sheets.