underscore or hyphen?? i wud rather prefer a comma(,) as compared to a hyphen, as a separator for keywrds. wen v gv atitle name as abc - abc1 den d space before n after hyphen is also counted as a character. bt wen v put a comma, one dsnt need 2 gv any space.
i had this question myself. try using google with a keyword with more than one word. Notice the green links on the search results page and how your keywords are bolded. In terms of SEO, google is smart enough to figure it out. I found that you'll see sites rank well will appear with either hyphens or underscores.
Hi, As a SEO view go for firstname-lastname.php, because dashes act two different keywords or one phases but hypens act one new keywords of new phase (firstnamelastname) .