The most simple way to freshen your design - to change appearance of links.
Changes of styles will borrow all some seconds, but the result for certain is pleasant to visitors of your site. Below I shall result some examples of styles for links.

1. Color, underlining is the most habitual for us a kind of links on the majority of sites. Color allocates the link from the usual text, and the link will let know underlining{emphasis} to users, what is it.

2. Color, without underlining - underlining is not always obligatory, sometimes it is enough to allocate the link with color to not distract attention of the user from reading article, forcing him to pass under links.

3. The fat text, underlining - if at you minimal

4. A fine font, underlining - small letters one more good way to allocate your link. And underlining to the user, what is it the link, and uneasy unusually allocated text besides will let know.

5. Underliningby strokes - we have got used, that the link is underlined by a continuous line. Underlining by strokes will give to our link unusual style and users

6. The color background, underlining - Allocation of the link by the text more habitually, than allocation of a background of the link, therefore such effect will by all means draw attention of the user and will noticeably update design. And as

Effects at prompting on the link as are important, as well as, for example, 

Here some advice, what effects is better to apply:

1. Removal/addition of underlining - the most habitual and effective way of the indication of the active link.

2. Change of color - is better to change color for more contrast that the difference in change of color from one on another was appreciable. Also it is possible to change and color of a background.

3. Do not change fat content and an inclination of the text is will affect display of the text since to change formatting, so also width of a word. The text it will be simple to skip, that is not so pleasant.