Bjørn Johansen

Usually when you click a permalink (“read more”-link) to a post, the link contains a “#more-” at the end, making the browser jump down to the “readmore” mark. You might not want this behaviour, so this plugin removes the anchor from the link.

Remove More Jump

Removes the anchor from the permalinks ("read more"-links), so you don't jump halfway down the page.

pyko

A simple plugin that allows you to modify the link that is displayed when you use the <!–more–> feature. Also lets you remove the anchor link to turn off the jumping behaviour. You can also choose to have the more link open in a new window/tab.
You can choose to have just plain text, or also include the post’s title. If you chose to include the title, you can limit the number of characters/words that are displayed in the title. Also allows you to add ellipsis (…) to the title if it has been truncated. All the options can be found in “More Link” tab under “Options” in admin page.

Remove More Jump vs More Link Modifier