Many Drupal modules add their links to the so called "link" area that follows each node and each comment. Link area usually contains such items as "reply", "subscribe", "bookmark", etc. With many modules the links become crowded, cluttered and disorganized.
With iTweak Links you can beautify the links area. iTweak Links module can:
remove some links
reorder links
group selected links into drop-down submenus
change selected links text, title, class (optionally using tokens)
turn links into buttons (customized by user theme or using included iTweak Links CSS)
The module is currently in development stage. There is no configuration GUI yet. All settings are hard-coded in the module's code, though it is one PHP data structure that defines all transformations. Brave ones are encouraged to customize that structure to their needs. Others - see Roadmap for what are the ideas for the future and have patience, or sponsor further development.
The Internal Links module, Intlinks, is a simple set (currently two) of input filters which modify the output of internal, root-relative links in any text input format for which they are enabled. The title filter allows you to have the node titles of linked content automatically inserted into the link as the HTML "title" attribute, with "node/123" -type href paths converted to URL aliases, too. It is especially useful for streamlining the editorial workflow and improving SEO. You can also use the "Hide bad" filter to "unlink" unpublished content so visitors don’t encounter "page not found" errors.