You can jump up to the top of any web site - indeed any list - by tapping on the top of the title window. It's much faster than scrolling by hand.
Web Pages as Apps.
Instead of using bookmarks to get back to frequently visited web pages, consider creating
desk-top icons for those most important pages.
In Safari, tap the Add Bookmark icon (+), select "Add To Home Screen", and then tap the
Add button. An icon shortcut to the page will be added to your desktop.