The National Literacy Trust have a great website with milestones, fun stuff, books and great activity sheets for different age groups. A super website to explore. Here is the link to use: http://www.wordsforlife.org.uk
Story museum is another great website to improve you reading. There are story activities for age groups which then have further links to other websites for stories. Here is the link to use: http://www.storymuseum.org.uk/schools/parents/stories-home/